InterviewBit | Abhishek Agrawal 's gists solutions | Hashing library

 by   cruxrebels C++ Version: Current License: MIT

kandi X-RAY | InterviewBit Summary

kandi X-RAY | InterviewBit Summary

InterviewBit is a C++ library typically used in Security, Hashing applications. InterviewBit has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitLab, GitHub.

This repository is a collection of my gists (working :white_check_mark: code snippets passing all test cases on the InterviewBit online judge) solutions in the absolutely fantastic language, C++.
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              InterviewBit has a low active ecosystem.
              It has 173 star(s) with 119 fork(s). There are 4 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 2 open issues and 4 have been closed. On average issues are closed in 133 days. There are 7 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of InterviewBit is current.

            kandi-Quality Quality

              InterviewBit has no bugs reported.

            kandi-Security Security

              InterviewBit has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              InterviewBit is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              InterviewBit releases are not available. You will need to build from source code and install.

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            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of InterviewBit
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            InterviewBit Key Features

            No Key Features are available at this moment for InterviewBit.

            InterviewBit Examples and Code Snippets

            merge Arranges
            javadot img1Lines of Code : 40dot img1no licencesLicense : No License
            copy iconCopy
            void merge(int[] Arr, int start, int mid, int end) {
            
                    // create a temp array
                    int[] temp = new int[end - start + 1];
            
                    // crawlers for both intervals and for temp
                    int i = start, j = mid + 1, k = 0;
            
                    // traverse b  
            Calculates the longestalrome of a String
            javadot img2Lines of Code : 30dot img2no licencesLicense : No License
            copy iconCopy
            public int longestPalindrome(String s) {
                    int result = 0;
                    int len = s.length();
                    HashMap map = new HashMap<>();
                    for (int i = 0; i < len; i++) {
                        char ch = s.charAt(i);
                        map.put(ch, map.getO  
            Find the index of the solution
            javadot img3Lines of Code : 27dot img3no licencesLicense : No License
            copy iconCopy
            public int solution(int[] A) {
                    double minAvg = Integer.MAX_VALUE;
                    int index = 0;
                    if (A.length <= 2) {
                        return 0;
                    }
            
                    for (int i = 0; i < A.length - 2; i++) {
                        if ((A[i] + A[i + 1]) /   

            Community Discussions

            QUESTION

            How to find difference between these two codes? Both give same answer when executed but website says one code is partial correct
            Asked 2020-Dec-13 at 12:51

            Question is Count Total Set Bits: https://www.interviewbit.com/problems/count-total-set-bits/

            My solution is:

            ...

            ANSWER

            Answered 2020-Dec-12 at 07:20

            The problem in your code is here:

            Source https://stackoverflow.com/questions/65262424

            QUESTION

            Best Time to Buy and Sell Stocks with the constraint of at most two transactions
            Asked 2019-Dec-08 at 15:56

            Question taken up from this website: https://www.interviewbit.com/problems/best-time-to-buy-and-sell-stocks-iii/

            Say you have an array for which the ith element is the price of a given stock on day i.

            Design an algorithm to find the maximum profit. You may complete at most two transactions.

            Note: You may not engage in multiple transactions at the same time (ie, you must sell the stock before you buy again).

            My Solution:

            ...

            ANSWER

            Answered 2019-Mar-12 at 15:43

            Local Minimums and maximum might not be optimal because we have 2 transactions available.

            Your code sometimes uses wrong local minimums/maximums

            For example given input:

            1 1 3 1 3 2 4

            Your solution gives: 4

            Correct asnwer is: 5

            Source https://stackoverflow.com/questions/55123312

            QUESTION

            Compare Version number
            Asked 2019-Sep-17 at 10:22

            The following is the link to the problem I'm trying.

            https://www.interviewbit.com/problems/compare-version-numbers/

            I simulated the array to compare both the versions. But I couldn't find any mistake in the code.

            ...

            ANSWER

            Answered 2019-Sep-17 at 09:37

            You have an overflow. 4444371174137455 doesn't fit in int. Try to use uint64_t for vnum1 and vnum2

            Source https://stackoverflow.com/questions/57971290

            QUESTION

            Runtime error in Largest Distance between nodes of a Tree
            Asked 2019-Aug-30 at 06:24

            This is an interviewbit.com problem : https://www.interviewbit.com/problems/largest-distance-between-nodes-of-a-tree/

            Given an arbitrary unweighted rooted tree which consists of N (2 <= N <= 40000) nodes. The goal of the problem is to find largest distance between two nodes in a tree. Distance between two nodes is a number of edges on a path between the nodes (there will be a unique path between any pair of nodes since it is a tree). The nodes will be numbered 0 through N - 1.

            I am finding a node which is farthest from root node using dfs. From this node i am doing DFS to find the farthest node. this distance is the required answer. I implemented it, but while calling do_dfs function i am getting segmentation fault. i wrote return statement after every line to find out where i am getting error. I have indicated that line in comment in code.

            ...

            ANSWER

            Answered 2019-Aug-30 at 06:24

            Change the line in Solution::solve(vector &A):

            Source https://stackoverflow.com/questions/57691678

            QUESTION

            error for size 2 list in merge K sorted List
            Asked 2019-Aug-03 at 19:50

            I am solving a problem on InterviewBit (Link) : https://www.interviewbit.com/problems/merge-k-sorted-lists/ I have to merge k sorted linked lists and return it as one sorted list. This is my solution:

            ...

            ANSWER

            Answered 2019-Aug-03 at 19:50

            The problem with your code is that the list you are returning consists of pointers to nodes which have been destroyed. So your code has undefined behaviour.

            Source https://stackoverflow.com/questions/57341475

            QUESTION

            C++ unordered_map operator[ ] vs unordered_map.find() performance
            Asked 2019-Jul-31 at 05:08

            I was solving a competitive programming problem on interviewbit.com I basically used a unordered_map to keep track of visited numbers. When I used operator[], my code could not perform in time, but it passes all tests when I used find. Both should have same time complexity.

            I tried timing both codes using clock() by running them 10 times and averaging out the run times and they both gave more or less same time. I used g++ 7.4.0 while the environment provided by website has g++ 4.8.4. Could this be the reason for this.

            ...

            ANSWER

            Answered 2019-Jul-31 at 05:08

            There are two reasons why the []-operator will be slower than find:

            1. The []-operator calls a non-const function on the map properly preventing all kinds of optimizations, like loop unrolling.
            2. The more import reason: The []-operator creates non-existing elements in the map with their default value. The map will be bloated with all pairs of A[i] + A[j], that were not previously in the map and set their values to 0. This will increase the map size and thus the time.

            I think your performance measurements showed no difference between the two alternatives because of one or more of this reasons:

            1. The input vector is too small to make a difference
            2. Most combinations of A[i] + A[j] are already in the vector, so the unordered_map is not bloated enough to make a difference
            3. You did not optimize your code (-O3 or -Os) your code

            Source https://stackoverflow.com/questions/57283444

            QUESTION

            solution to "sum root to leaf numbers" problem
            Asked 2019-Jul-28 at 08:51

            Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.

            An example is the root-to-leaf path 1->2->3 which represents the number 123.

            Find the total sum of all root-to-leaf numbers % 1003.

            example:
            if 1 is root, its left child is 2 and right child is 3 then,
            The root-to-leaf path 1->2 represents the number 12.
            The root-to-leaf path 1->3 represents the number 13.

            Return the sum = (12 + 13) % 1003 = 25 % 1003 = 25.
            original problem is here

            P.S: this is not homework, I'm preparing for college placements. my attempt:

            ...

            ANSWER

            Answered 2019-May-21 at 13:21

            The line

            if(!root->left) DFS(root->left, temp, ans); should be

            if(root->left) DFS(root->left, temp, ans);

            Same thing for the right node. Basically, you never go down in the tree if a node exists.

            Alternatively, you can simplify the code:

            • Use integers instead of strings to make the computations lighter.
            • Pass temp variable by copy, then you won't have to "pop_back" the last digit.
            • Call DFS without checking if the pointer is null since it already checks at the beginning.
            • Remove the last modulo operation since it was already done in DFS.

            Source https://stackoverflow.com/questions/56238804

            QUESTION

            JavaScript giving different result than C++ for similar code
            Asked 2019-Jul-16 at 19:54

            I was solving a DP question involving Catalan Numbers using JavaScript. I was getting the wrong answer for n = 35 (35th Catalan Number). So I decided to code in C++. I wrote similar code in C++ and to my surprise my code passed all test cases. Why am I getting different result for similar code in C++ and JS?

            Problem Link : https://www.interviewbit.com/problems/intersecting-chords-in-a-circle/

            JS Code(Rhino 1.7.7)

            ...

            ANSWER

            Answered 2019-Jul-16 at 18:24

            That's because Javascript uses 64-bit IEEE 754 floating point numbers. If you change your C++ code to use the equivalent type (double), you get the same wrong result:

            Source https://stackoverflow.com/questions/57062529

            QUESTION

            Memoized solution gives TLE while tabulated solution does not
            Asked 2019-Jul-09 at 16:25

            I am attempting the following question from Interviewbit:

            Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.

            NOTE: You can only move either down or right at any point in time.

            I have written the following memoized solution:

            ...

            ANSWER

            Answered 2019-Jul-09 at 16:25

            The test cases have negative numbers in the grid ( though they have explicitly mentioned non-negative numbers). So dp[i][j] can be negative but your function will never consider those values. Just used another vector to store the visited cell and it got accepted.

            Source https://stackoverflow.com/questions/56914845

            QUESTION

            Python3 EOFError: EOF when reading a line Hackerrank, or any online portal
            Asked 2019-Jan-07 at 00:39

            I always get this error whenever using input() in Python3 in any online compiler, hackerrank, wipro portal, interviewbit etc. I've seen so many posts regarding this, but none of them is working for me. try except block leads to always execution of the except block which I don't want as I'm still not able to read any input. Even as simple as the following code doesn't work. Help.

            ...

            ANSWER

            Answered 2019-Jan-07 at 00:39

            Try going to https://www.hackerrank.com/challenges/python-loops/problem where the single input line is already there in the starter code for you. If you select Python 3 from the language dropdown, and then -- without entering any code of your own at all -- click Run Code, you should get a Wrong Answer "no response on stdout" response. Do you get that, or do you still get an EOFError? I'm assuming you don't get the EOFError and that perhaps there's a problem with where/how you're entering your code into their editor.

            If you're getting an error like that with InterviewBit, I'd say it's because with InterviewBit you're not supposed to be reading from stdin at all -- the starter code will have a function that their test cases call, and then you complete the function code to return the desired output.

            Source https://stackoverflow.com/questions/51799737

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

            Vulnerabilities

            No vulnerabilities reported

            Install InterviewBit

            You can download it from GitLab, GitHub.

            Support

            Fork the repository :fork_and_knife:Do the desired changes (add/delete/modify) :pencil2:Make sure you've followed the existing coding standards and pattern of pasting the entire problem statement with a link to the problem on InterviewBit. For reference, you can follow any existing file in this Repo. e.g. AddOneToNumber.cppAttach a screenshot from InterviewBit showing that your solution was ACCEPTED by the online judge. I've been getting a lot of pull requests which are not Accepted by the online judge.Make a pull request :shipit:
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