explaingit

haoel/leetcode

Analysis updated 2026-05-18

★ 18,054C++Audience · developerComplexity · 1/5Setup · easy

TLDR

A collection of C++ solutions to LeetCode coding problems, organized by problem number with links to both the original problems and solution code.

Mindmap

mindmap
  root((repo))
    What it does
      LeetCode solutions
      C++ implementations
      Problem reference
    Problem coverage
      Easy difficulty
      Medium difficulty
      Hard difficulty
      1900+ problems
    Use cases
      Interview prep
      Algorithm practice
      Code reference
    Tech stack
      C++
      Java
      LeetCode platform
Click or tap to explore — scroll the page freely

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

What do people build with it?

USE CASE 1

Prepare for software engineering interviews by studying working solutions to common algorithm problems.

USE CASE 2

Reference correct implementations when stuck on a LeetCode problem you're solving.

USE CASE 3

Practice data structures and algorithms across a wide range of difficulty levels and topics.

What is it built with?

C++Java

How does it compare?

haoel/leetcodewled/wledgoogle/libphonenumber
Stars18,05418,04418,008
LanguageC++C++C++
Setup difficultyeasymoderateeasy
Complexity1/53/52/5
Audiencedevelopergeneraldeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 5min
License could not be detected automatically. Check the repository's LICENSE file before use.

In plain English

This repository is a large collection of solutions to coding problems from LeetCode, a platform used for practicing algorithm and data structure problems, often in preparation for software engineering interviews. The solutions are written primarily in C++, with some problems also having Java solutions. The readme is almost entirely a table listing each problem by number and title, linking to both the original LeetCode problem and the corresponding solution file in the repository. Problems are tagged with their difficulty (Easy, Medium, or Hard) and cover a wide range of algorithm topics. The collection spans from early-numbered problems up through problem 1946, indicating it has been built up over time. There is no tutorial text or explanation of approaches, it is strictly a reference collection of working code solutions.

Copy-paste prompts

Prompt 1
Show me the C++ solution for LeetCode problem [number] from this repo and explain the algorithm used.
Prompt 2
I'm stuck on a LeetCode medium-difficulty problem about [topic]. Find a similar problem in this collection and show me how it's solved.
Prompt 3
Generate a study plan: pick 5 easy, 5 medium, and 5 hard problems from this repo that cover different algorithm topics.
Prompt 4
Compare the C++ and Java solutions for LeetCode problem [number] in this repo and explain the key differences.

Frequently asked questions

What is leetcode?

A collection of C++ solutions to LeetCode coding problems, organized by problem number with links to both the original problems and solution code.

What language is leetcode written in?

Mainly C++. The stack also includes C++, Java.

What license does leetcode use?

License could not be detected automatically. Check the repository's LICENSE file before use.

How hard is leetcode to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is leetcode for?

Mainly developer.

Open on GitHub → Explain another repo

This repo across BitVibe Labs

Scan in gitsafehub Deploy in gitdeployhub haoel on gitmyhub

Verify against the repo before relying on details.

Alternatives & similar repos