interview-prep | Interview preparation : coding questions

 by   dideler Python Version: Current License: No License

kandi X-RAY | interview-prep Summary

kandi X-RAY | interview-prep Summary

interview-prep is a Python library typically used in User Interface, MongoDB applications. interview-prep has no bugs, it has no vulnerabilities and it has low support. However interview-prep build file is not available. You can download it from GitHub.

I’m terrible at technical interviews. My anxiety levels skyrocket and I do awful. I’m not a fan of the way technical interviews are performed, but it’s easier to change myself than change the way the industry does interviews. This repository is an attempt to try and improve. Maybe it will help you too. Coding questions, behavioural questions, resume tips, tips for phone and in-person interviews, etc. Now if only I could follow my own advice.
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            kandi-support Support

              interview-prep has a low active ecosystem.
              It has 16 star(s) with 6 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              interview-prep has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of interview-prep is current.

            kandi-Quality Quality

              interview-prep has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              interview-prep does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              interview-prep releases are not available. You will need to build from source code and install.
              interview-prep has no build file. You will be need to create the build yourself to build the component from source.
              interview-prep saves you 64 person hours of effort in developing the same functionality from scratch.
              It has 168 lines of code, 17 functions and 5 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed interview-prep and discovered the below as its top functions. This is intended to give you an instant insight into interview-prep implemented functionality, and help decide if they suit your requirements.
            • Return True if two lists are identical .
            • Compress a string .
            • Remove a node from the list .
            • Check if a is a permutation v1 .
            • Compare two expected objects .
            • Removes all rows from a matrix .
            • Clear rows and cols .
            • Checks if a string contains unique characters .
            • Return True if a and b are permutation v2 .
            • Print a matrix .
            Get all kandi verified functions for this library.

            interview-prep Key Features

            No Key Features are available at this moment for interview-prep.

            interview-prep Examples and Code Snippets

            No Code Snippets are available at this moment for interview-prep.

            Community Discussions

            QUESTION

            Why wasn't this boolean value being registered in Go?
            Asked 2021-Jun-12 at 06:41

            I've begun learning Go, and I ran into a strange bug, and an even stranger fix for it working on a HackerRack problem:

            ...

            ANSWER

            Answered 2021-Jun-12 at 06:41

            So we have an actually correct answer here, the issue is that you're writing to the boolean but never reading from it. Without the Println(), it's not used in a conditional or any other expression anywhere that depends on its value, so the assignments to it don't affect the program flow. You could remove all of the lines assigning values to insideValley and the program would act no differently than it does right now (excepting the Println(), of course, which is why adding that "fixed" the issue).

            Go is specifically designed to flag "junk" code like that, that adds nothing to the program flow, as a compiler error (well, in most cases. Unused globals and unused functions are some exceptions to that). Simply add in whatever is supposed to be using that boolean's value (such as a conditional based on its value), and you'll stop getting the "variable unused" error.

            And as noted in the comments of Vishwa Ratna's answer, vars do not have to be used in every logical pathway. They only need to be used (ie. read from) in at least one logical pathway.

            Source https://stackoverflow.com/questions/67944883

            QUESTION

            code work in intellij but not hackerrank ide
            Asked 2021-May-27 at 16:19

            I'm doing this question on hackerrank: https://www.hackerrank.com/challenges/ctci-bubble-sort/problem?h_l=interview&playlist_slugs%5B%5D=interview-preparation-kit&playlist_slugs%5B%5D=sorting

            I wrote the solution in intellij, and it gives me the correct output there, but when I copied it over to the hackerrank ide, it gave me an error.

            This is the code I'm talking about:

            ...

            ANSWER

            Answered 2021-May-27 at 16:04

            You have put the Solution class within your Result class. HackerRank wants you to put the Solution class as its own class, like this:

            Source https://stackoverflow.com/questions/67725856

            QUESTION

            Tests failing on Hackerrank but answer correct
            Asked 2021-May-21 at 11:54

            I have the following solution:

            ...

            ANSWER

            Answered 2021-May-21 at 11:54

            after testing this for about an hour or so, I realized where you're mistaken. Namely, using prn instead of print prints out the quote characters alongside the actual text. This was a surprise to me, since I always thought that these two are interchangeable. If you change your prns to printlns, you should be okay.

            The final code that I created which passed all of the tests:

            Source https://stackoverflow.com/questions/67545956

            QUESTION

            How can I deconstruct a variable in javascript?
            Asked 2021-May-01 at 05:35

            I am trying to practise a question on hackerrank. Problem link

            I am trying to read the variable q

            ...

            ANSWER

            Answered 2021-May-01 at 05:35

            Carefully consider the way the solution template is written, the function minimimumBribes is being called with two different test cases one after another, not as array of test cases. You would want to do some processing and print the solution for each case in new line.

            As for deconstruction of arrays in javascript:

            Source https://stackoverflow.com/questions/67343107

            QUESTION

            Minimum absolute difference between vector pairs (greedy algorithm)
            Asked 2020-Nov-30 at 22:41

            Given a numeric vector, I'd like to find the smallest absolute difference in combinations of size 2. However, the point of friction comes with the use of combn to create the matrix holding the pairs. How would one handle issues when a matrix/vector is too large?

            When the number of resulting pairs (number of columns) using combn is too large, I get the following error:

            Error in matrix(r, nrow = len.r, ncol = count) : invalid 'ncol' value (too large or NA)

            This post states that the size limit of a matrix is roughly one billion rows and two columns.

            Here is the code I've used. Apologies for the use of cat in my function output -- I'm solving the Minimum Absolute Difference in an Array Greedy Algorithm problem in HackerRank and R outputs are only counted as correct if they're given using cat:

            ...

            ANSWER

            Answered 2020-Nov-21 at 21:27

            QUESTION

            Wrong answer in Abbreviations problem using DP
            Asked 2020-Nov-30 at 09:33

            Can someone explain what is wrong with my code? I am getting "Abort called" in 7 test cases. Rest are successful.

            I have a 2d dp array with of size: n+1 x m+1 were n and m are sizes of a and b respectively. So, the row represent string a and columns represent string b.

            First, I set dp[0][0] to 1 since it is possible to turn empty string into empty.

            So, initially, i am checking if I can turn any substring of a into the empty string (in the first single for-loop). This is true for all substrings of a without any capital letters. As soon as there is a capital letter, the rest of the substrings cannot be converted.

            Then (in the next double for-loop), I am examining all the cases.

            Case 1: a[i-1] == b[i-1] -> if both the letter are the exact same, then dp[i][j] = dp[i-1][j-1]

            Case 2: a[i-1] is lower case (this has 2 sub cases):

            Case 2.1: a[i-1] and b[j-1] are the same letter (but not the same case) -> then we can either change a[i-1] or delete it . So: dp[i][j] = dp[i-1][j-1] || dp[i-1][j].
            Case 2.2: a[i-1] and b[j-1] are not the same -> in this case, we can only delete a[i-1] since it is lower case . So: dp[i][j] = dp[i-1][j]

            Link to problem: https://www.hackerrank.com/challenges/abbr/problem?h_l=interview&playlist_slugs%5B%5D=interview-preparation-kit&playlist_slugs%5B%5D=dynamic-programming

            P.S. The main logic of the program is just inside the abbreviation() function.

            Code (EDITTED):

            ...

            ANSWER

            Answered 2020-Nov-30 at 09:33

            The error in the code is "Segmentation fault".

            Because of the following loop:

            Source https://stackoverflow.com/questions/65070389

            QUESTION

            HackerRank: New Year Chaos alternative answer Java
            Asked 2020-Nov-25 at 14:34

            So I've been solving this HackerRank problem and I can't really see why my answer isn't working. I've now seen other people's answers and they make sense but it's a completely different approach and I really want to understand why mine doesn't work. It passes two test cases but not the third one. If you all think it's just mathematically or logically off and can explain why that would be awesome. Thanks!

            This is the link to the question: https://www.hackerrank.com/challenges/new-year-chaos/problem?h_l=interview&playlist_slugs%5B%5D=interview-preparation-kit&playlist_slugs%5B%5D=arrays

            This is my code:

            public class Solution {

            ...

            ANSWER

            Answered 2020-Nov-25 at 14:34

            Your solution is wrong, because a change in position is not equivalent to a bribe. You can have bribes without a change in position and changes in position without a bribe. Start with 1 2 3 4 5:

            Source https://stackoverflow.com/questions/65005948

            QUESTION

            Hackerrank Repeated String infinite loop problem
            Asked 2020-Sep-24 at 04:17

            I am solving this hackerrank problem for counting the number of 'a's in a given string.

            My solution was to store the string in a pattern variable. While the length of the pattern is less than n, it will just add the string to itself. Then I would loop over the pattern and add the number of 'a's in the string.

            This solution works fine when n < 1000000. But add one more 0 and when n = 10000000, I get a RangeError for my string in hackerrank because it's too damn long.

            Is there a way to get around this RangeError problem? I know there are other ways to solve this problem, but I just want to know how I could edit my code to make it pass the hackerrank test.

            ...

            ANSWER

            Answered 2020-Sep-24 at 04:17

            You could do math on this rather than consume the memory and calculation on string concatenation and loop

            The total number of a would be the number of a in s times the repeated number of s that has total length not exceed n, plus the remainder (left substring) of s that fill the n

            For example, with the input

            Source https://stackoverflow.com/questions/64039171

            QUESTION

            Java Hackerank left array Rotation
            Asked 2020-Sep-09 at 14:53

            We have a method in which an array and number of rotations are passed as input and we have to return the array after left rotations. Here is my solution.

            ...

            ANSWER

            Answered 2020-Sep-09 at 14:51

            When you do the following:

            Source https://stackoverflow.com/questions/63814155

            QUESTION

            Sherlock's String
            Asked 2020-Aug-21 at 13:26

            Question Desc: Sherlock considers a string to be valid if all characters of the string appear the same number of times. It is also valid if he can remove just 1 character at 1 index in the string, and the remaining characters will occur the same number of times. Given a string s, determine if it is valid. If so, return YES, otherwise return NO.

            ...

            ANSWER

            Answered 2020-Aug-21 at 13:26

            It's because of the initial values you've set for your variables. On the very first step of your iteration through temp you'll find that ele == item (because both are temp[0]), and then subsequently that chk == True (because you set it so). After the first step it'll print yes and break immediately.

            Source https://stackoverflow.com/questions/63523639

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

            Vulnerabilities

            No vulnerabilities reported

            Install interview-prep

            You can download it from GitHub.
            You can use interview-prep like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

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