oj | Downloading sample cases | Learning library

 by   online-judge-tools Python Version: v11.5.1 License: MIT

kandi X-RAY | oj Summary

oj is a Python library typically used in Tutorial, Learning, Spring Boot applications. oj has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can install using 'pip install oj' or download it from GitHub, PyPI.
oj is a command to help solving problems on various online judges. This command automates downloading sample cases, generating additional test cases, testing for your code, and submitting it.
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                        oj has a medium active ecosystem.
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                        It has 825 star(s) with 80 fork(s). There are 16 watchers for this library.
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                        It had no major release in the last 12 months.
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                        There are 19 open issues and 322 have been closed. On average issues are closed in 108 days. There are 5 open pull requests and 0 closed requests.
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                        It has a neutral sentiment in the developer community.
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                        The latest version of oj is v11.5.1
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                            oj Support
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                                  kandi-Quality Quality

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                                    oj has 0 bugs and 0 code smells.
                                    oj Quality
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                                        oj Quality
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                                              kandi-Security Security

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                                                oj has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
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                                                oj code analysis shows 0 unresolved vulnerabilities.
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                                                There are 0 security hotspots that need review.
                                                oj Security
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                                                          kandi-License License

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                                                            oj is licensed under the MIT License. This license is Permissive.
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                                                            Permissive licenses have the least restrictions, and you can use them in most projects.
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                                                                        oj releases are available to install and integrate.
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                                                                        Deployable package is available in PyPI.
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                                                                        Build file is available. You can build the component from source.
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                                                                        Installation instructions, examples and code snippets are available.
                                                                        summary
                                                                        oj saves you 2024 person hours of effort in developing the same functionality from scratch.
                                                                        summary
                                                                        It has 5051 lines of code, 269 functions and 35 files.
                                                                        summary
                                                                        It has high code complexity. Code complexity directly impacts maintainability of the code.
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                                                                            oj Reuse
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                                                                                  Top functions reviewed by kandi - BETA
                                                                                  kandi has reviewed oj and discovered the below as its top functions. This is intended to give you an instant insight into oj implemented functionality, and help decide if they suit your requirements.
                                                                                  • Add a subparser to the subparser
                                                                                    • Format a log record
                                                                                  • Run the tool
                                                                                  • Return an argument parser
                                                                                  • Construct a relationship between two files
                                                                                    • Format a string with a percentage
                                                                                    • Match directory with given format
                                                                                  • Register the explorer
                                                                                  • Glob a directory with the given format
                                                                                  • Creates a new requests session with the given cookies
                                                                                  • Return a list of paths to drop backup or hidden files
                                                                                  • Return a pretty - printed diff string
                                                                                    • Render tokens
                                                                                    • Tokenize the output of a pretty diff
                                                                                    • Decode the content of the given content
                                                                                  • Create a path based on a format
                                                                                  • Generates pretty - printed file content
                                                                                    • Tokenize large file content
                                                                                    • Check if the tokens are empty
                                                                                  Get all kandi verified functions for this library.
                                                                                  Get all kandi verified functions for this library.

                                                                                  oj Key Features

                                                                                  Download sample cases
                                                                                  Download system test cases
                                                                                  Login
                                                                                  Submit your code
                                                                                  Test your code
                                                                                  Test your code for reactive problems
                                                                                  Generate input files from generators
                                                                                  Generate output files from input and reference implementation

                                                                                  oj Examples and Code Snippets

                                                                                  No Code Snippets are available at this moment for oj.
                                                                                  Community Discussions

                                                                                  Trending Discussions on oj

                                                                                  What does back to back table references mean in SQL from clause
                                                                                  chevron right
                                                                                  Why custom comparator for set in c++ requires extra 'const' keyword
                                                                                  chevron right
                                                                                  Is this Union Find really O(n) as they claim?
                                                                                  chevron right
                                                                                  How to use scale_fill_manual to manually define bar plot colors
                                                                                  chevron right
                                                                                  Flutter Web release mode cannot show data from Algolia
                                                                                  chevron right
                                                                                  What is wrong with my Filter and Map function as its not filtering the correct item inside my React Component?
                                                                                  chevron right
                                                                                  how to write XPath of a nested element
                                                                                  chevron right
                                                                                  LibreOffice HSQLDB WHERE clause with LEFT JOIN and MAX?
                                                                                  chevron right
                                                                                  react native redux: how do I update a specific value in a slice
                                                                                  chevron right
                                                                                  ggplot2 Missing y-axis labels
                                                                                  chevron right

                                                                                  QUESTION

                                                                                  What does back to back table references mean in SQL from clause
                                                                                  Asked 2022-Apr-01 at 19:24

                                                                                  I am looking at a query from crystal reports and it shows a table name immediately followed by a table name. see below if that didn't make sense but I am trying to understand what this syntax is/does? thank you in advance for any insight

                                                                                  select * from {oj ((table_name table_name inner join ......))}
                                                                                  

                                                                                  ANSWER

                                                                                  Answered 2022-Apr-01 at 19:24

                                                                                  The 2nd name is the alias. It allows you to refer to the table using a different name. For example, you may want to shorten the references to that table throughout the rest of the statement in order to make things more readable. Or, more importantly, you may want to use the same table twice in the same statement (in which case an alias is required).

                                                                                  Source https://stackoverflow.com/questions/71711810

                                                                                  QUESTION

                                                                                  Why custom comparator for set in c++ requires extra 'const' keyword
                                                                                  Asked 2022-Mar-19 at 07:32

                                                                                  I am solving a problem on leetcode OJ where i had to use a custom comparator for set in C++.

                                                                                  typedef pair,int> ppi;
                                                                                  
                                                                                  class comp
                                                                                  {
                                                                                      public:
                                                                                      bool operator()(const ppi & p1, const ppi & p2)
                                                                                      {
                                                                                          if(p1.first.first == p2.first.first)
                                                                                          {
                                                                                              if(p1.first.second == p2.first.second) return p1.second > p2.second;
                                                                                              else return p1.first.second > p2.first.second;
                                                                                          }
                                                                                          else
                                                                                              return p1.first.first > p2.first.first;
                                                                                      }
                                                                                  };
                                                                                  

                                                                                  this is giving me an error when i am trying to delete an element from the set, which looks like:

                                                                                  set customStack;
                                                                                  .
                                                                                  .
                                                                                  .
                                                                                  customStack.erase({{currentFrequency, currentAddress},val});
                                                                                  

                                                                                  error:

                                                                                  In file included from prog_joined.cpp:1:
                                                                                  In file included from ./precompiled/headers.h:50:
                                                                                  In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/map:60:
                                                                                  /usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_tree.h:779:4: error: static_assert failed due to requirement 'is_invocable_v, int> &, const std::pair, int> &>' "comparison object must be invocable as const"
                                                                                            static_assert(
                                                                                            ^
                                                                                  /usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_tree.h:1997:31: note: in instantiation of member function 'std::_Rb_tree, int>, std::pair, int>, std::_Identity, int>>, comp, std::allocator, int>>>::_S_key' requested here
                                                                                            if (_M_impl._M_key_compare(_S_key(__x), __k))
                                                                                                                       ^
                                                                                  /usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_tree.h:2534:38: note: in instantiation of member function 'std::_Rb_tree, int>, std::pair, int>, std::_Identity, int>>, comp, std::allocator, int>>>::equal_range' requested here
                                                                                        pair __p = equal_range(__x);
                                                                                                                       ^
                                                                                  /usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_set.h:685:21: note: in instantiation of member function 'std::_Rb_tree, int>, std::pair, int>, std::_Identity, int>>, comp, std::allocator, int>>>::erase' requested here
                                                                                        { return _M_t.erase(__x); }
                                                                                                      ^
                                                                                  Line 39: Char 25: note: in instantiation of member function 'std::set, int>, comp, std::allocator, int>>>::erase' requested here
                                                                                              customStack.erase({{currentFrequency, currentAddress},val});
                                                                                                          ^
                                                                                  1 error generated.
                                                                                  

                                                                                  after added 'const' in the comparator (line 4):

                                                                                  class comp
                                                                                  {
                                                                                      public:
                                                                                      bool operator()(const ppi & p1, const ppi & p2)const
                                                                                  

                                                                                  this worked for me.

                                                                                  What is the reason for adding that extra keyword?

                                                                                  ANSWER

                                                                                  Answered 2022-Mar-19 at 07:18

                                                                                  By adding that const to the end of that member function you're making it a const member function, meaning that it cannot possibly modify any of your member variables. Because calling a non-const member function could modify the object, you can't call it if the object is const.

                                                                                  std::set's erase member function requires that operator() be const to stop it from modifying the object's in their set without you realizing.

                                                                                  If any member function can be const then it should be const, just like any variables you declare or take in as arguments.

                                                                                  Source https://stackoverflow.com/questions/71535955

                                                                                  QUESTION

                                                                                  Is this Union Find really O(n) as they claim?
                                                                                  Asked 2022-Mar-14 at 07:33

                                                                                  I am solving a problem on LeetCode:

                                                                                  Given an unsorted array of integers nums, return the length of the longest consecutive elements sequence. You must write an algorithm that runs in O(n) time. So for nums = [100,4,200,1,3,2], the output is 4.

                                                                                  The Union Find solution to solve this is as below:

                                                                                  class Solution {
                                                                                  public:
                                                                                      vector parent, sz;
                                                                                      
                                                                                      int find(int i) {
                                                                                          if(parent[i]==i) return i;
                                                                                          return parent[i]=find(parent[i]);
                                                                                      }
                                                                                      
                                                                                      void merge(int i, int j) {
                                                                                          int p1=find(i);
                                                                                          int p2=find(j);
                                                                                          
                                                                                          if(p1==p2) return;
                                                                                          if(sz[p1]>sz[p2]) {
                                                                                              sz[p1]+=sz[p2];
                                                                                              parent[p2]=p1;
                                                                                          } else {
                                                                                              sz[p2]+=sz[p1];
                                                                                              parent[p1]=p2;
                                                                                          }
                                                                                      }
                                                                                  
                                                                                      int longestConsecutive(vector& nums) {
                                                                                          sz.resize(nums.size(),1);
                                                                                          parent.resize(nums.size(),0);
                                                                                  
                                                                                          iota(begin(parent),end(parent),0);
                                                                                  
                                                                                          unordered_map m;
                                                                                  
                                                                                          for(int i=0; ires) {
                                                                                                  res=sz[i];
                                                                                              }
                                                                                          }
                                                                                  
                                                                                          return res;
                                                                                      }
                                                                                  };
                                                                                  

                                                                                  This gets accepted by the OJ (Runtime: 80 ms, faster than 76.03% of C++ online submissions for Longest Consecutive Sequence), but is this really O(n), as claimed by many answers, such as this one? My understanding is that Union Find is an O(NlogN) algorithm.

                                                                                  Are they right? Or, am I missing something?

                                                                                  ANSWER

                                                                                  Answered 2022-Mar-14 at 07:33

                                                                                  They are right. A properly implemented Union Find with path compression and union by rank has linear run time complexity as a whole, while any individual operation has an amortized constant run time complexity. The exact complexity of m operations of any type is O(m * alpha(n)) where alpha is the inverse Ackerman function. For any possible n in the physical world, the inverse Ackerman function doesn't exceed 4. Thus, we can state that individual operations are constant and algorithm as a whole linear.

                                                                                  The key part for path compression in your code is here:

                                                                                  return parent[i]=find(parent[i])
                                                                                  

                                                                                  vs the following that doesn't employ path compression:

                                                                                  return find(parent[i])
                                                                                  

                                                                                  What this part of the code does is that it flattens the structure of the nodes in the hierarchy and links each node directly to the final root. Only in the first run of find will you traverse the whole structure. The next time you'll get a direct hit since you set the node's parent to its ultimate root. Notice that the second code snippet works perfectly fine, but it just does redundant work when you are not interested in the path itself and only in the final root.

                                                                                  Union by rank is evident here:

                                                                                  if(sz[p1]>sz[p2]) {...
                                                                                  

                                                                                  It makes sure that the node with more children becomes the root of the node with less children. Therefore, less nodes need to be reassigned a new parent, hence less work.

                                                                                  Note: The above was updated and corrected based on feedback from @Matt-Timmermans and @kcsquared.

                                                                                  Source https://stackoverflow.com/questions/71453109

                                                                                  QUESTION

                                                                                  How to use scale_fill_manual to manually define bar plot colors
                                                                                  Asked 2022-Mar-12 at 13:06

                                                                                  I am finalizing the representation of my dataset using ggplot2 and for the sake of clarity I would need a coloring scheme that defies standard ggplot2 "logic". Below is a fake dataset to show you my needs in essence:

                                                                                  df2 <- data.frame(supp=rep(c("VC", "OJ"), each=3),
                                                                                                    dose=rep(c("D0.5", "D1", "D2"),2),
                                                                                                    len=c(6.8, 15, 33, 4.2, 10, 29.5))
                                                                                  head(df2)
                                                                                  
                                                                                  supp dose  len
                                                                                  1   VC D0.5  6.8
                                                                                  2   VC   D1 15.0
                                                                                  3   VC   D2 33.0
                                                                                  4   OJ D0.5  4.2
                                                                                  5   OJ   D1 10.0
                                                                                  6   OJ   D2 29.5

                                                                                  Here is the basic representation I'm using giving the plot below:

                                                                                  ggplot(data=df2, aes(x=dose, y=len, fill=supp)) +
                                                                                    geom_bar(stat="identity", position=position_dodge())
                                                                                  

                                                                                  What I would need is to apply a presonalized color palette (myPalette <- c("#05eb92", "#119da4", "#ffc857")) only to the VC series, while coloring OC series Black. Below is the expected plot I need. I am aware that this coloring scheme defies ggplot2 "logic" but I was wondering whether there is an easy way to apply it to my needs. Thanks.

                                                                                  ANSWER

                                                                                  Answered 2022-Mar-12 at 13:01

                                                                                  I would create a dummy variable in your input df2 for the ggplot fill aesthetic. Here, "-999" refers to "OJ" and will be coloured in black.

                                                                                  I've also updated your myPalette to include black in it, and also setNames to it so that only "-999" will have a corresponding "black" value.

                                                                                  library(tidyverse)
                                                                                  
                                                                                  df2 <- data.frame(supp=rep(c("VC", "OJ"), each=3),
                                                                                                    dose=rep(c("D0.5", "D1", "D2"),2),
                                                                                                    len=c(6.8, 15, 33, 4.2, 10, 29.5))
                                                                                  
                                                                                  myPalette <- c("#05eb92", "#119da4", "#ffc857")
                                                                                  
                                                                                  myPalette_with_black <- setNames(c(myPalette, "black"), 
                                                                                                                   c(as.character(seq_along(myPalette)), "-999"))
                                                                                  
                                                                                  df2 <- df2 %>% 
                                                                                    group_by(supp) %>% 
                                                                                    mutate(dummy = ifelse(supp == "VC", as.character(row_number()), "-999"))
                                                                                  
                                                                                  ggplot(data=df2, aes(x=dose, y=len, fill = dummy)) +
                                                                                    geom_bar(stat="identity", position=position_dodge()) +
                                                                                    scale_fill_manual(values = myPalette_with_black) +
                                                                                    theme(legend.position = "none")
                                                                                  

                                                                                  Created on 2022-03-12 by the reprex package (v2.0.1)

                                                                                  Source https://stackoverflow.com/questions/71449469

                                                                                  QUESTION

                                                                                  Flutter Web release mode cannot show data from Algolia
                                                                                  Asked 2022-Feb-28 at 23:15

                                                                                  I cannot show a list retrieved by Algolia when I am using --release mode in Flutter. It's very interesting that it works just fine when running the app in Flutter Web Debug. Can anyone help me out with this issue?

                                                                                  Works with:

                                                                                  [✓] Flutter Web Debug

                                                                                  [✓] Postman

                                                                                  Error I got in Web Console:

                                                                                  js_helper.dart:1137 Uncaught TypeError: Cannot read properties of undefined (reading 'h')
                                                                                      at Object.bf4 (VM939 main.dart.js:27309:16)
                                                                                      at VM939 main.dart.js:52638:25
                                                                                      at b_W.a (VM939 main.dart.js:5429:62)
                                                                                      at b_W.$2 (VM939 main.dart.js:46761:14)
                                                                                      at aZB.$1 (VM939 main.dart.js:46755:21)
                                                                                      at abu.oj (VM939 main.dart.js:47823:32)
                                                                                      at aQY.$0 (VM939 main.dart.js:47180:11)
                                                                                      at Object.EG (VM939 main.dart.js:5562:40)
                                                                                      at av.u7 (VM939 main.dart.js:47112:3)
                                                                                      at a64.dj (VM939 main.dart.js:46750:8)
                                                                                  

                                                                                  Flutter Version (Channel stable, 2.10.0, on macOS 12.1 21C52 darwin-x64, locale en-US)

                                                                                  Snipped code: Algolia call function:

                                                                                  Future getEmployee(String name) async {
                                                                                      AlgoliaQuery query = algolia.instance
                                                                                          .index(employeeIndexName)
                                                                                          .facetFilter('companyId:${userController.user.companyId}')
                                                                                          .query(name);
                                                                                      AlgoliaQuerySnapshot snap = await query.getObjects();
                                                                                      return snap;
                                                                                    }
                                                                                  

                                                                                  Reveal in list:

                                                                                  FutureBuilder(
                                                                                                future: AlgoliaService().getEmployee(searchQuery),
                                                                                                builder: (BuildContext context,
                                                                                                    AsyncSnapshot snapshot) {
                                                                                                  if (snapshot.hasError) {
                                                                                                    return Text('Something went wrong');
                                                                                                  }
                                                                                  
                                                                                                  if (snapshot.connectionState == ConnectionState.waiting) {
                                                                                                    return Center(
                                                                                                      child: CircularProgressIndicator(),
                                                                                                    );
                                                                                                  }
                                                                                                 return Text("No errors");
                                                                                               )
                                                                                  

                                                                                  ANSWER

                                                                                  Answered 2022-Feb-22 at 05:46

                                                                                  I had the same issue.

                                                                                  In case anyone is looking for an immediate fix, what worked for me was to force the use of 1.0.2 dependency instead of 1.0.4:

                                                                                  dependencies:
                                                                                      algolia: '1.0.2'
                                                                                  

                                                                                  This is an open issue.

                                                                                  Source https://stackoverflow.com/questions/71077177

                                                                                  QUESTION

                                                                                  What is wrong with my Filter and Map function as its not filtering the correct item inside my React Component?
                                                                                  Asked 2022-Jan-24 at 00:01

                                                                                  Here is are my menu items, and I want to filter only the Drinks in a drink Component, I am displaying both the 'Drinks' and 'Eat' under categories. And my goal is to only filter and extract the 'Drinks' as I am displaying the drinks on its own component.

                                                                                  Here is my data:

                                                                                  const MenuItems: MenuItems[] = [
                                                                                    {
                                                                                      category: "Drinks",
                                                                                      price: 2,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Coffee",
                                                                                      description: "A blend of coffee beans from La Bolsa in Colombia.",
                                                                                    },
                                                                                    {
                                                                                      category: "Drinks",
                                                                                      price: 2,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "OJ",
                                                                                      description: "Cold pressed and freshely squeezed orange juice.",
                                                                                    },
                                                                                    {
                                                                                      category: "Drinks",
                                                                                      price: 2,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Tea",
                                                                                      description: "Cold pressed and freshely squeezed orange juice.",
                                                                                    },
                                                                                    {
                                                                                      category: "Drinks",
                                                                                      price: 2,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Iced",
                                                                                      description: "Choice of Earl Grey, GreenTea, Chamomile, or Peppermint.",
                                                                                    },
                                                                                    {
                                                                                      category: "Drinks",
                                                                                      price: 4,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Latte",
                                                                                      description: "2 shots of espresso served with steamed milk of choice.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 14,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "FCC Classic",
                                                                                      description:
                                                                                        "Three cage-free eggs cooked any style and with bacon. Includes hash browns and toast.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 14,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "3 Egg Omelet",
                                                                                      description:
                                                                                        "Three cage-free eggs with Mushrooms, Peppers, Onions. Served with hash browns and toast.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 14,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Corned Beef Hash",
                                                                                      description:
                                                                                        "Our signature shredded hash mixed with grass-fed, dry-rubbed, corned beef, caramelized poblanos and onions, topped with two cage-free eggs; your style, & toast.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 12,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "OMG French Toast!",
                                                                                      description:
                                                                                        "Fresh brioche stuffed with mascarpone and topped with vanilla crème, caramel, fresh strawberries, and toasted coconut.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 9,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Buttermilk Pancakes",
                                                                                      description:
                                                                                        "Buttermilk pancakes topped with whipped butter and powdered sugar served with Slopeside Pure Vermont Maple Syrup.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 12,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "FCC Ham Benedict",
                                                                                      description:
                                                                                        "Our Signature English muffin topped with fresh smashed avocado, Parmesan cheese, ripened tomatoes, two poached cage free-eggs, smoked cheddar hollandaise and everything spice.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 12,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Avocado Benny",
                                                                                      description:
                                                                                        "Our Signature English muffin topped with fresh smashed avocado, Parmesan cheese, ripened tomatoes, two poached cage free-eggs, smoked cheddar hollandaise and everything spice.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 13,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "FCC Avocado Toast",
                                                                                      description:
                                                                                        "Rustic bread toasted with olive oil, smashed avocado, onion honey jam, and roasted tomato. Topped with two cage-free sunny side up eggs with a side Dijon citronette, Spiced Pepitas & Parmesan-dressed greens.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 12,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Veggie Smash",
                                                                                      description:
                                                                                        "Griddled, smashed sweet potatoes, a cage-free poached egg, avocado, pickled onions, paprika, drizzled with black pepper maple syrup and topped with our asparagus mushroom salad.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 13,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Garden Omelet",
                                                                                      description:
                                                                                        "Three cage-free eggs with sauteed asparagus, mushrooms, zucchini and red bell peppers. Topped with chili-lime seasoned avocado and goat cheese.",
                                                                                    },
                                                                                    {
                                                                                      category: "Eats",
                                                                                      price: 12,
                                                                                      url: "https://res.cloudinary.com/dlsacnkot/image/upload/v1634070429/test.jpg",
                                                                                      name: "Tofu Veggie Scramble",
                                                                                      description:
                                                                                        "Tofu seasoned with onion powder, salt & pepper; scrambled with choice of three fillings, served with hash browns and toast.",
                                                                                    },
                                                                                  ];
                                                                                  export default MenuItems;
                                                                                  interface MenuItems {
                                                                                    category: string;
                                                                                    price: number;
                                                                                    url: string;
                                                                                    name: string;
                                                                                    description: string;
                                                                                  }
                                                                                  

                                                                                  Here is my Drinks Component

                                                                                  import MenuItems from "./MenuItems";
                                                                                  
                                                                                  const Drinks = (props) => {
                                                                                    return {props.MenuItems.name} ;
                                                                                  };
                                                                                  
                                                                                  export default Drinks;
                                                                                  

                                                                                  Here is my main Menu Component, and my map and filter functions.

                                                                                  
                                                                                        
                                                                                          {MenuItems.filter((item) => "Drinks").map((item) => {
                                                                                            return ;
                                                                                          })}
                                                                                        
                                                                                  

                                                                                  Output:

                                                                                  Coffee OJ Tea Iced Latte FCC Classic 3 Egg Omelet Corned Beef Hash OMG French Toast! Buttermilk Pancakes FCC Ham Benedict Avocado Benny FCC Avocado Toast Veggie Smash Garden Omelet Tofu Veggie Scramble

                                                                                  Only want the "drinks" to show, not the "Eats".

                                                                                  ANSWER

                                                                                  Answered 2022-Jan-24 at 00:01

                                                                                  MenuItems.filter((item) => "Drinks") return always true

                                                                                  What you should be doing is comparing the category to drinks.

                                                                                  MenuItems.filter((item) => item.category === "Drinks")

                                                                                  Source https://stackoverflow.com/questions/70826930

                                                                                  QUESTION

                                                                                  how to write XPath of a nested element
                                                                                  Asked 2022-Jan-19 at 20:14

                                                                                  HTML structure is as shown below,

                                                                                  
                                                                                     
                                                                                         
                                                                                     
                                                                                         
                                                                                  

                                                                                  How do I write Xpath to get to input class = "text-input-entry" under oj-input-text class = "input", for the label-hint = "pfg"

                                                                                  I thought something like this would work but it does not

                                                                                  //div [@class = "items"]/oj-input-text [@class = "input", @label-hint = "pfg"]/input [@class = "text-input-entry"]
                                                                                  

                                                                                  ANSWER

                                                                                  Answered 2022-Jan-19 at 19:59

                                                                                  Use Chrome DevTools -> Inspect -> Copy -> Copy XPath This will give you an example of how to build the XPath. i.e. The XPath of your question's code: //*[@id="question"]/div/div[2]/div[1]/pre[1]/code

                                                                                  Source https://stackoverflow.com/questions/70776928

                                                                                  QUESTION

                                                                                  LibreOffice HSQLDB WHERE clause with LEFT JOIN and MAX?
                                                                                  Asked 2021-Dec-30 at 10:11

                                                                                  I'm running macOS 11.6,LibreOffice 7.2.2.2,HSQLDB (my understanding is this is v.1.8, but don't know how to verify)

                                                                                  I'm a newbie to SQL, and I'm trying to write a DB to maintain a club membership roster. I'm trying to find everyone in the DB to whom renewal letters should be sent. The quirk is, if a person has never paid in the past, they should be sent a renewal letter. Old members who haven't renewed recently don't get a renewal, and obviously, each individual should only get one letter. I've created a toy example to display the problem I'm having...

                                                                                  Members table:
                                                                                  Key (Integer, Primary key, Autoincrement)
                                                                                  Name (Varchar)
                                                                                  +-----+----------+
                                                                                  | Key | Name     |
                                                                                  +-----+----------+
                                                                                  |  0  | Abby     |
                                                                                  |  1  | Bob      |
                                                                                  |  2  | Dave     |
                                                                                  |  3  | Ellen    |
                                                                                  +-----+----------+
                                                                                  
                                                                                  Payments table:
                                                                                  Key (Integer, Primary Key, autoincrement)
                                                                                  MemberKey (Integer, foreign key to Member table)
                                                                                  Payment Date (Date)
                                                                                  +-----+-----------+--------------+
                                                                                  | Key | MemberKey | Payment Date |
                                                                                  +-----+-----------+--------------+
                                                                                  |  0  |     0     | 2020-05-23   |
                                                                                  |  1  |     0     | 2021-06-12   |
                                                                                  |  2  |     1     | 2016-05-28   |
                                                                                  |  3  |     2     | 2020-07-02   |
                                                                                  +-----+-----------+--------------+
                                                                                  

                                                                                  The only way I've found to include everyone is with a LEFT JOIN. The only way I've found to pick the most recent payment is with MAX. The following query produces a list of everyone's most recent payments, including people who've never paid:

                                                                                  SELECT "Members"."Key", "Members"."Name", MAX( "Payments"."Payment Date" ) AS "Last Payment"
                                                                                  FROM { oj "Members" LEFT OUTER JOIN "Payments" ON "Members"."Key" = "Payments"."MemberKey" }
                                                                                  GROUP BY "Members"."Key", "Members"."Name"
                                                                                  

                                                                                  It returns the result below, which includes all members only once (Abby has 2 payments but only appears once with the most recent payment). Unfortunately it still includes people like Bob who've been out of the club so long that we don't want to send them a renewal notice.

                                                                                  +-----+----------+--------------+
                                                                                  | Key | Name     | Last Payment |
                                                                                  +-----+----------+--------------+
                                                                                  |  0  | Abby     | 2021-06-12   |
                                                                                  |  1  | Bob      | 2016-05-28   |
                                                                                  |  2  | Dave     | 2020-07-02   |
                                                                                  |  3  | Ellen    |              |
                                                                                  +-----+----------+--------------+
                                                                                  

                                                                                  Where I hit a wall is when I try to perform any kind of conditional operation on the Last Payment, to determine whether it's recent enough to include in the list of renewal notices. For instance, in HSQLDB, the query below returns the error, "The data content could not be loaded. Not a condition." The only change in this query from the 1st one is the addition of the WHERE clause.

                                                                                  SELECT "Members"."Key", "Members"."Name", MAX( "Payments"."Payment Date" ) AS "Last Payment"
                                                                                  FROM { oj "Members" LEFT OUTER JOIN "Payments" ON "Members"."Key" = "Payments"."MemberKey" }
                                                                                  WHERE "Last Payment" >= '2020-01-01'
                                                                                  GROUP BY "Members"."Key", "Members"."Name"
                                                                                  

                                                                                  The desired output should look like this:

                                                                                  +-----+----------+--------------+
                                                                                  | Key | Name     | Last Payment |
                                                                                  +-----+----------+--------------+
                                                                                  |  0  | Abby     | 2021-06-12   |
                                                                                  |  2  | Dave     | 2020-07-02   |
                                                                                  |  3  | Ellen    |              |
                                                                                  +-----+----------+--------------+
                                                                                  

                                                                                  I've been digging around the web trying anything that looks relevant. I've tried "HAVING" clauses--I can make them work with a COUNT(*) function, but I can't make them work with a MAX(*) function. I've tried using my 1st query as a subquery, and applying the WHERE clause on "Last Payment" in the main query. I've tried solutions people say work in MySQL, but I can't get them to work in HSQLDB. I tried using the 1st query as a View, and writing a query against the View. I've tried a dozen other things I don't even remember. Everything past the 1st query above throws an error. I wanted to include my toy DB, but can't find a way to attach it to the post.

                                                                                  Can anyone help please?

                                                                                  ANSWER

                                                                                  Answered 2021-Dec-30 at 10:11

                                                                                  This worked for me.

                                                                                  SELECT "Members"."Key", "Members"."Name", MAX( "Payments"."Payment Date" ) AS "Last Payment"
                                                                                  FROM {oj "Members" LEFT OUTER JOIN "Payments" ON "Members"."Key" = "Payments"."MemberKey"
                                                                                      WHERE "Payments"."Payment Date" >= '2020-01-01'
                                                                                      OR "Payments"."Payment Date" IS NULL}
                                                                                  GROUP BY "Members"."Key", "Members"."Name"
                                                                                  

                                                                                  Result:

                                                                                  This works as well.

                                                                                  SELECT "Members"."Key", "Members"."Name", MAX( "Payments"."Payment Date" ) AS "Last Payment"
                                                                                  FROM { oj "Members" LEFT OUTER JOIN "Payments" ON "Members"."Key" = "Payments"."MemberKey" }
                                                                                  WHERE "Payments"."Payment Date" >= '2020-01-01'
                                                                                      OR "Payments"."Payment Date" IS NULL
                                                                                  GROUP BY "Members"."Key", "Members"."Name"
                                                                                  

                                                                                  Perhaps the problem you were having is that "Last Payment" is only a column title and not the actual name of any column.

                                                                                  Source https://stackoverflow.com/questions/70526240

                                                                                  QUESTION

                                                                                  react native redux: how do I update a specific value in a slice
                                                                                  Asked 2021-Dec-24 at 00:45

                                                                                  Here's my redux configuration:

                                                                                  userSlice.js

                                                                                  import { createSlice } from "@reduxjs/toolkit";
                                                                                  
                                                                                  const initialState = {
                                                                                    name: "",
                                                                                    email: "",
                                                                                    avatar: "",
                                                                                    id: "",
                                                                                  };
                                                                                  
                                                                                  
                                                                                  export const userSlice = createSlice({
                                                                                    name: "user",
                                                                                    initialState: initialState,
                                                                                    reducers: {
                                                                                      setUser: (state, action) => {
                                                                                        return {
                                                                                          ...state,
                                                                                          name: action.payload.name,
                                                                                          email: action.payload.email,
                                                                                          avatar: action.payload.avatar,
                                                                                          id: action.payload.id,
                                                                                        };
                                                                                      },
                                                                                    },
                                                                                  });
                                                                                  
                                                                                  export const { setUser, logout } = userSlice.actions;
                                                                                  export default userSlice.reducer;
                                                                                  

                                                                                  store.js

                                                                                  import { configureStore } from "@reduxjs/toolkit";
                                                                                  import userSlice from "./slices/userSlice";
                                                                                  
                                                                                  export const store = configureStore({
                                                                                      reducer: {
                                                                                         user: userSlice,
                                                                                      },
                                                                                  });
                                                                                  

                                                                                  app.js

                                                                                                  
                                                                                                    
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                      
                                                                                                        
                                                                                  

                                                                                  Here's some conext:

                                                                                  1. I Log in then put values into the user slice through the response of the fetch

                                                                                                           const newUser = {
                                                                                                             name: oj.name,
                                                                                                             email: oj.email,
                                                                                                             avatar: oj.avatar,
                                                                                                             id: oj.sub,
                                                                                                           };
                                                                                                           dispatch(setUser(newUser));
                                                                                  
                                                                                • After Logging in, I console.log these values this way:

                                                                                • const user = useSelector((state) => state.user);
                                                                                  console.log(user)   
                                                                                  

                                                                                  And this is what it shows:

                                                                                  Object {
                                                                                    "avatar": "url",
                                                                                    "email": "asd",
                                                                                    "id": "61bcf738e954f7ffc11d507d",
                                                                                    "name": "Asd",
                                                                                  }
                                                                                  

                                                                                  I want to update name from "name": "Asd" to "name": "bill" without changing the others and this is my try:

                                                                                  const newUser = {                 
                                                                                  
                                                                                   name: "bill"
                                                                                  };
                                                                                  dispatch(setUser(newUser));
                                                                                  

                                                                                  It works, but then the other propeties(email, avatar, id) become undefined. So how can I update a single value without touching the others?

                                                                                  ANSWER

                                                                                  Answered 2021-Dec-24 at 00:45

                                                                                  You can use the spread operator to merge the existing state with your new payload.

                                                                                  Currently, you overwrite the name, email, avatar, and id properties:

                                                                                  return {
                                                                                          ...state,
                                                                                          name: action.payload.name,
                                                                                          email: action.payload.email,
                                                                                          avatar: action.payload.avatar,
                                                                                          id: action.payload.id,
                                                                                        };
                                                                                  

                                                                                  This will merge only the included properties:

                                                                                  return {
                                                                                          ...state,
                                                                                          ...action.payload,
                                                                                        };
                                                                                  

                                                                                  Source https://stackoverflow.com/questions/70468618

                                                                                  QUESTION

                                                                                  ggplot2 Missing y-axis labels
                                                                                  Asked 2021-Dec-15 at 15:17

                                                                                  Morning, I have a little problem with my ggplot graph.

                                                                                  For some reason, I can't see right now, the y axis ticks and numbers are missing. Maybe, I'm missing something really obvious here or it's something in my settings. The toothgrowth dataset does not really fit the graph, but you can still see the problem (normally facet_wrap is included, but it does not work with this dataset).

                                                                                  library(tidyverse)
                                                                                  library(ggbeeswarm)
                                                                                  library(gghalves)
                                                                                  library(tidyr)
                                                                                  library(ggplot2)
                                                                                  library(ggpubr)
                                                                                  
                                                                                  theme_set(theme_bw(16))
                                                                                  
                                                                                  data <- ToothGrowth
                                                                                  
                                                                                  a<- ggplot(data, aes(x=supp, y=len)) +
                                                                                  geom_half_boxplot(
                                                                                  data = data %>% filter(supp=="OJ"), 
                                                                                  aes(x = supp, y = len,  fill=supp), outlier.color = NA) +
                                                                                  scale_fill_manual(values=c("#F2F2F2", "#999999"))+
                                                                                  
                                                                                  geom_half_boxplot(
                                                                                  data = data %>% filter(supp=="VC"), 
                                                                                  aes(x = supp, y = len, fill=supp), side = "r", outlier.color = NA) +
                                                                                  
                                                                                  geom_line(aes(group=supp, colour = supp), position = position_dodge(0.2), alpha = 0.3) +
                                                                                  geom_point(aes(group=supp, colour = supp),size=1,shape=21, position = position_dodge(0.2)) +
                                                                                  scale_color_manual(values=c("chartreuse3", "yellow2",
                                                                                                            "firebrick3"))+
                                                                                  #  facet_wrap(~ supp)+
                                                                                  #  theme(
                                                                                  #    strip.background = element_blank(),
                                                                                  #    strip.text.x = element_blank())+
                                                                                  theme(plot.margin=unit(c(0,0,0,0),"cm"))+
                                                                                  scale_y_discrete(name ="Name")+
                                                                                  theme(text = element_text(size=11))+
                                                                                  theme(legend.position = "none")
                                                                                  
                                                                                  a
                                                                                  

                                                                                  Would be great if someone could see the problem; I'm going blind by now. Many thanks!!

                                                                                  ANSWER

                                                                                  Answered 2021-Dec-15 at 08:43

                                                                                  Shouldn't your y axis be continuous?

                                                                                  scale_y_continuous(name ="Name")
                                                                                  

                                                                                  Then you can add the limits and ticks positions as you want:

                                                                                  scale_y_continuous(name="Name",limits=c(min,max), breaks=c(a,b,c,d))
                                                                                  

                                                                                  Source https://stackoverflow.com/questions/70360581

                                                                                  Community Discussions, Code Snippets contain sources that include Stack Exchange Network

                                                                                  Vulnerabilities

                                                                                  No vulnerabilities reported

                                                                                  Install oj

                                                                                  The package is https://pypi.python.org/pypi/online-judge-tools . For detailed instructions, read docs/INSTALL.md.

                                                                                  Support

                                                                                  For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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