explaingit

haoel/leetcode

★ 18,055C++Audience · developerComplexity · 1/5DormantSetup · 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

Things people build with this

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.

Tech stack

C++Java

Getting 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.
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