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C++ Leetcode

Open-source C++ projects categorized as Leetcode

Top 17 C++ Leetcode Projects

  1. LeetCode

    This repository contains the solutions and explanations to the algorithm problems on LeetCode. Only medium or above are included. All are written in C++/Python and implemented by myself. The problems attempted multiple times are labelled with hyperlinks.

  2. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  3. algorithms_and_data_structures

    180+ Algorithm & Data Structure Problems using C++

  4. LeetCode-Solutions

    🏋️ Python / Modern C++ Solutions of All 3962 LeetCode Problems (Weekly Update)

  5. Interview_DS_Algo

    Super Repository for Coding Interview Preperation

  6. LearnCPP

    Learn Cpp from Beginner to Advanced ✅ Practice 🎯 Code 💻 Repeat 🔁 One step solution for c++ beginners and cp enthusiasts.

  7. Leetcode

    This Repository Contains All My Solved Leetcode Problems. (by knockcat)

  8. NeetCode-Solutions

    My solutions in C++, Python and Rust for problems on NeetCode.io

  9. LeetCode-Solutions

    A compilation of all the Leetcode solutions. (by SHY-Corp)

  10. leetcode-solutions

    My solutions to Leetcode Problems: Categorized based on the data structures, algorithms, and tricks used to solve them. (by razimantv)

  11. code_problems

    Code Problems from Coding Challenge Websites. The goal is to help them to improve their code skills and also studying for coding interviews.

  12. cp-tips

    Tips for C++ Competitive Programming

  13. claude-with-leetcode

    Daily Leetcode masterclass with Claude code DSA mentor

    Project mention: Grind LeetCode questions with Claude Code dsa mentor | news.ycombinator.com | 2026-06-16
  14. Crack-Your-Placement

    🎯 Repo for placement-preparation, DSA, Problem-Solving, Competitive Programming, CS-Fundamentals

  15. Fork_CPP

    This repository contain the C++ program from basic to advance. This repository will help you to prepare for the interview questions.

  16. Leetcode_Solutions

  17. CppPlayground

    A sandbox environment for C++ experimentation

    Project mention: Optimizing a Lock-Free Ring Buffer | news.ycombinator.com | 2026-03-26

    Agreed. For benchmarking I used this <https://github.com/david-alvarez-rosa/CppPlayground/blob/mai...> which relies on GoogleBenchmark and pins producer/consumer threads to dedicated CPU cores

    What else could be improved? Would like to learn :)

    Maybe using huge pages?

  18. Interview-Checkpoints

    Keeping track of my various DSA solutions to Leetcode, Hackerrank & Striver's sheet! BasicChecklist has all the theory notes for interviews.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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C++ Leetcode related posts

  • Grind LeetCode questions with Claude Code dsa mentor

    1 project | news.ycombinator.com | 16 Jun 2026
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  • Lessons from leetcode: 347 Top K Frequent Elements

    1 project | dev.to | 23 Feb 2024
  • Why learn Data structures and Algorithm

    1 project | dev.to | 3 Feb 2024
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  • Feel like killing myself

    1 project | /r/csMajors | 8 Dec 2023
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  • A note from our sponsor - SaaSHub
    www.saashub.com | 22 Jun 2026
    SaaSHub helps you find the best software and product alternatives Learn more →

Index

What are some of the best open-source Leetcode projects in C++? This list will help you:

# Project Stars
1 LeetCode 6,183
2 algorithms_and_data_structures 6,130
3 LeetCode-Solutions 5,870
4 Interview_DS_Algo 4,488
5 LearnCPP 822
6 Leetcode 503
7 NeetCode-Solutions 296
8 LeetCode-Solutions 245
9 leetcode-solutions 174
10 code_problems 59
11 cp-tips 41
12 claude-with-leetcode 25
13 Crack-Your-Placement 21
14 Fork_CPP 13
15 Leetcode_Solutions 8
16 CppPlayground 8
17 Interview-Checkpoints 1

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