dp | data exchange with blockchain , developers can get | Cryptocurrency library
kandi X-RAY | dp Summary
kandi X-RAY | dp Summary
Through SDK for data exchange with blockchain, developers can get easy access to DAPP development. It mainly includes data encryption and decryption, signature, smart contract, event notification, data storage API, data acquisition and search, digital currency payment, third party APP payment API and so on.The process is as following: Data provider inputs data and metadata through SDK (data includes static data and dynamic data which have the agreed format; metadata mainly includes data signature, data description and etc). Data demander can find the required data through SDK and obtain the data after paying digital currency. The data verifier can be qualified by pledging a certain amount of digital currency to the smart contract. In the process of data exchange, the data demander can initiate the compensable data verification request or transaction arbitration to the smart contract, and the verifier will be randomly selected by the smart contract. All participants in the data exchange can score each other in the transaction;The smart contract would record the transaction and scores of the participants thus generate the reputation evaluation of the participants which can be inquired through SDK.
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Top functions reviewed by kandi - BETA
- parseTopics takes a list of topics and populates the fields for each of them .
- transact executes a transaction and returns a transaction .
- toGoType converts an abi . Type to a Go type .
- Init initializes the core engine
- create creates a new publish
- Perform a job .
- Publish a message to the contract
- executeEvent executes an event
- ListenEvent is used to listen for events on a block
- forEachUnpack iterates over a slice of bytes and returns the resulting slice .
dp Key Features
dp Examples and Code Snippets
def _construct_solution(dp: list, wt: list, i: int, j: int, optimal_set: set):
"""
Recursively reconstructs one of the optimal subsets given
a filled DP table and the vector of weights
Parameters
---------
dp: list of list,
public static int dp(int[] weight, int[] profit, int capacity) {
int n = weight.length;
int[][] dp = new int[n + 1][capacity + 1];
for (int i = 0; i <= n; i++) {
for (int j = 0; j <= capacity; j++) {
if (i == 0 || j == 0) {
d
private static int helper(char[] chars, int start, int end, Integer[][] dp) {
if (start == end) return 0;
if (dp[start][end] != null) return dp[start][end];
int cuts = Integer.MAX_VALUE;
String sb1 = "", sb2 = "";
Community Discussions
Trending Discussions on dp
QUESTION
In the following code how can we pass the context.args
and context
to another function, in this case callback_search_msgs
ANSWER
Answered 2021-Jun-15 at 18:39A few notes:
- job callbacks accept exactly one argument of type
CallbackContext
. Not two. - the
job_kwargs
parameter is used to pass keywoard argument to the APScheduler backend, on whichJobQueue
is built. The way you're trying to use it doesn't work. - if you want to know only the
chat_id
in the job, you don't have to pass the wholecontext
argument ofsearch_msgs
. Just docontext.job_queue.run_once(..., context=chat_id,...)
- if you want to pass both the
chat_id
andcontext.args
you can e.g. pass them as tuple:
QUESTION
When navigating from Composable A -> Composable B, say Composable A is a Lazy List scrolled halfway down and Composable B is a Lazy List Item Details Screen. Currently, the lazy list scroll position isn't stored, and when navigating back to Composable A from B, the list starts from item index 0. We could store it in a ViewModel, and read the value back, as well as use rememberSaveable, however, I am unsure as to how to implement rememberSaveable so that it scrolls to the saved position after back navigation.
Which method would be preferred to use following good code practices?
Edit: My problem arises from the fact that the listState isn't stored when navigating back from composable B to A. So if we scroll to the bottom and select an item and look at its details, when we navigate back to the list it is scrolled to the top, instead of saving its scrollState.
My composable
...ANSWER
Answered 2021-Jun-15 at 14:10I'm leaving this question up in case anyone else ever gets stuck in my situation, but the code works as it is meant to, I just committed a folly.
I didn't account for height changes with asynchronous image loading and as such, the list would not be at its saved position upon composable navigation, due to the list state being smaller than the screen height on returning to the composable.
However, If the images were given static containers to load into to that don't change their size, then upon back navigation, the composable would correctly display the saved list state.
QUESTION
I want the size of the text to be in .dp
so that it doesn't change according to the system font.
How to achieve this in Jetpack Compose "Text" composable
ANSWER
Answered 2021-Jun-14 at 02:46Using em
made my font size consistent, irrespective of the system font size
Eg.Text("ABCD", fontSize = 10.em)
The question was also asked in google's issuetracker https://issuetracker.google.com/190644747
QUESTION
I have a data frame with important data in varying columns. Here is an example of the data using dput()
ANSWER
Answered 2021-Jun-15 at 13:36Here is what you could do to get your values into a "DP", "DP4" and "IDV" columns :
QUESTION
I wanted to build a very simple demo. A button which you can click, and it counts the clicks.
Code looks like this:
...ANSWER
Answered 2021-Jun-09 at 08:12You need to use the "remember" keyword for the recomposition to happen each time, as explained here: https://foso.github.io/Jetpack-Compose-Playground/general/state/
In short, your composable would look like this:
QUESTION
I have been moderating a telegram group for some time and I have had no issues using the python-telegram-bot package. I actually love it. However, I can't seem to get a functioning "Welcome Message" for when new users join.
Right now, I have tried structuring the function like I do with my command and message handlers:
...ANSWER
Answered 2021-Jun-15 at 07:15As thethiny already pointed out, chatmember updates have so associated message: update.message
will be None
, while update.chat_member
will be an instance of ChatMemberUpdated
. Note that Message.reply_text
is just a shortcut for Bot.send_message(chat_id=message.chat.id, ...)
, so as long as you have the chat_id
you can just use e.g. context.bot.send_message
- and you can get that chat_id
from ChatMemberUpdated.chat
. In fact, you can still use PTBs shortcuts, e.g. update.effective_chat.send_message
.
Please check out the docs of
ChatMemberUpdated
(official and PTB)Update.effective_chat
Chat.send_message
as well as the chatmemberbot.py
example provided by PTB.
Disclaimer: I'm currently the maintainer of python-telegram-bot
QUESTION
this code returns me a black screen, what am I doing wrong?
python file:
...ANSWER
Answered 2021-Jun-15 at 01:11The problem is that the kv
language insists that class names start with a capital letter. The documentation says:
Keep class names capitalized to avoid syntax errors
I think your code will work if you change all your class names to meet that requirement.
.
QUESTION
I am using this template in my overleaf Report:
https://www.overleaf.com/project/60c75f5e234ec24080f0ea6a
If link is not accesible here is the code:
...ANSWER
Answered 2021-Jun-14 at 21:22The problem is that your document class already selects a bibliography style, which you can't change afterwards. Two workarounds:
use the style your document class sets by removing
\bibliographystyle{IEEEannot}
from your codeif you actually do need the other style, save
olplainarticle.cls
under a new name and change l.8\ProvidesClass{olplainarticle}[06/12/2015, v1.0]
to the new name, remove line 43/44\RequirePackage{natbib} \bibliographystyle{apalike}
from the new .cls file and then change\documentclass{olplainarticle}
to the new name
QUESTION
How to create BottomNavigation with one of the item is larger than the parent, but without using floatingActionButton. For example like this:
I tried to do that by wrapping the icon with Box but it get cut like this:
Then i try to separate that one button and use constraintLayout to position it, but the constraintLayout cover the screen like this. Even when i color it using Color.Transparent, it always feels like Color.White (i dont know why Color.Transparent never work for me). In this picture i give it Red color for clarity reason.
So how to do this kind of bottomNavBar without having to create heavy-custom-composable?
Update: so i try to make the code based on MARSK and Dharman comment (thanks btw). This is what i
...ANSWER
Answered 2021-Jun-13 at 21:06Custom Composable are not heavy, really.
Anyway, try this:-
Create a Container of MaxWidth (maybe a BoxWithConstraints or something), keep its background transparent, set the height to wrap content. Create the tabs as usual, but keeping the bigger tab's icon size bigger explicitly using Modifier.size(Bigger Size).
After you have this setup, add another container inside this container with white background, covering a specific height of the original container. Let's say 60%
Now set the z-index of all the icons and tabs to higher than the z-index of this lastly added container. Use Modifier.zIndex for this. And viola, you have your Composable ready.
In order to set a specific percentage height of the inner container, you will need access to the height of the original container. Use BoxWithConstraints for that, or just implement a simple custom Layout
Composable
QUESTION
For better optimization, I decided to use the RecycleView in one part of my program to hold a set of DownloadItem instances. The problem is that the class takes two arguments: path & url_type which I do not know how to pass to the data of the recylceview. As a result I get the error below:
...ANSWER
Answered 2021-Jun-14 at 01:06In order to use DownloadItem
in your kv
, it must have an __init__()
with no required arguments. Here is a version that uses properties instead of required arguments:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install dp
We assume that you have finished geth download and installation. Run geth_init.ps1 script in dp/backend/contracts/geth_init content to finish private chain building Run geth_acc_mine.ps1 script in the same content to create user and start mining.
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