An open API service indexing awesome lists of open source software.

LeetCode

LeetCode is a popular online platform that provides programming and technical interview questions. The site features challenges across a range of difficulties, focusing on algorithms, data structures, and other computer science fundamentals. LeetCode helps users enhance their coding skills, prepare for technical interviews, and engage in programming contests. This topic explores how LeetCode equips individuals with the tools to improve their coding proficiency and problem-solving abilities in a competitive environment.

https://github.com/emahtab/number-of-provinces

Find number of connected components in a graph

bfs connected-components dfs graph leetcode

Last synced: 28 Mar 2025

https://github.com/emahtab/ugly-number

Find whether a number is an Ugly number

leetcode problem-solving ugly-number

Last synced: 28 Mar 2025

https://github.com/emahtab/spiral-matrix

Spiral Traversal of a 2D Matrix

leetcode problem-solving spiral-traversal

Last synced: 28 Mar 2025

https://github.com/emahtab/same-tree

Check whether two binary trees are same

binary-tree dfs leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/walls-and-gates

Fill the grid with the distance to the nearest gate

breadth-first-search depth-first-search leetcode

Last synced: 28 Mar 2025

https://github.com/emahtab/reverse-linked-list

Reverse a singly Linked List

leetcode linked-list problem-solving reverse

Last synced: 28 Mar 2025

https://github.com/emahtab/ransom-note

Check If Ransom string can be constructed

leetcode problem-solving ransom

Last synced: 28 Mar 2025

https://github.com/emahtab/product-of-array-except-self

Product of array except self

array leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/power-of-three

Determine whether a number is power of three.

leetcode maths problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/unique-binary-search-trees

Count the total number of BST possible with n numbers

binary-search-tree dynamic-programming leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/sum-of-two-integers

Sum two integers without using + operator

bit-shifting bitwise-operators leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/symmetric-binary-tree

Check whether a Binary Tree is Symmetric around its center

binary-tree leetcode problem-solving symmetric-binary-tree

Last synced: 28 Mar 2025

https://github.com/emahtab/palindrome-linked-list

Check If Linked List is Palindrome

leetcode linked-list palindrome problem-solving

Last synced: 15 Jun 2025

https://github.com/emahtab/next-permutation

Find the next permutation

leetcode permutation problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/merge-sorted-array

Merge two sorted arrays

leetcode merge problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/middle-of-the-linked-list

Find the middle node of the Linked List

leetcode linked-list problem-solving

Last synced: 17 Jun 2025

https://github.com/emahtab/longest-palindromic-substring

Find longest palindromic substring in a string

dynamic-programming leetcode palindrome problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/longest-common-prefix

Find the longest common prefix among strings

leetcode prefix problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/kth-largest-element-in-an-array

kth largest element in an array

heap leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/XoXoHarsh/CodersHub

CodersHub is a mobile app that simplifies access to coding profiles by consolidating platforms like LeetCode and Codeforces. It offers a user-friendly interface for viewing profiles, tracking ratings, and navigating daily problems without switching apps or logging in repeatedly.

codeforces competitive-programming firebase geeksforgeeks java leetcode mobile-app

Last synced: 24 Feb 2025

https://github.com/lzhbrian/leetcode-python

My solutions of Leetcode using Python

leetcode leetcode-solutions python

Last synced: 18 Feb 2025

https://github.com/miladsade96/leetcode_with_java

Solving Leetcode Challenges using Java Programming Language and Testing them with JUnit

algorithm algorithms algorithms-and-data-structures data-structures java java-8 javaee leetcode leetcode-java leetcode-solutions

Last synced: 13 Mar 2025

https://github.com/atennop1/codeproblemssolutions

Repository for making tasks from Codewars and LeetCode

codewars codewars-solutions cpp learning leetcode leetcode-solutions

Last synced: 23 Feb 2025

https://github.com/amorist/leetcode

golang leetcode

leetcode

Last synced: 11 Apr 2025

https://github.com/emahtab/first-unique-character-in-a-string

Find the first unique character in a string

hashmap leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/insert-delete-getrandom

Insert delete getRandom() in O(1) average

hashmap leetcode list problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/factorial-trailing-zeroes

Find number of trailing zeroes in factorial of a number

factorial leetcode maths maths-problem problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/binary-tree-zigzag-level-order-traversal

Binary Tree Zigzag (Spiral) Order Traversal

bfs binary-tree leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/wanghaoxi3000/leetcode

LeetCode 解题记录

leetcode leetcode-golang

Last synced: 21 Mar 2025

https://github.com/justin-pyne/coding-problems

A collection of my LeetCode solutions for Python data structure/algorithm problems and SQL problems, organized by language.

algorithms leetcode leetcode-solutions python sql

Last synced: 22 Feb 2025

https://github.com/emahtab/convert-sorted-array-to-binary-search-tree

Convert Sorted Array to Height Balanced Binary Search Tree

binary-search-tree leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/best-time-to-buy-and-sell-stock

Find the max profit buying and selling stock with at most one transaction.

buy-and-sell leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/battleships-in-a-board

Count the total Battleships in a board

dfs graph leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/best-time-to-buy-and-sell-stock-ii

Find the max profit buying and selling stock with unlimited number of transactions.

buy-and-sell leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/add-two-numbers

Add two linked lists nodes

leetcode linked-list problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/copy-list-with-random-pointer

Copy a Linked List with Random Pointer

clone leetcode linked-list problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/cousins-in-binary-tree

Check whether given two nodes are cousins in a binary tree

binary-tree dfs leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/check-completeness-of-a-binary-tree

Checking whether a binary tree is Complete binary tree or not

bfs complete-binary-tree leetcode problem

Last synced: 28 Mar 2025

https://github.com/emahtab/decode-ways

Number of ways to decode

dynamic-programming leetcode problem-solving

Last synced: 28 Mar 2025

https://github.com/emahtab/count-complete-tree-nodes

Count total nodes in a Complete Binary Tree

complete-binary-tree leetcode problem-solving

Last synced: 28 Mar 2025