indy256/codelibrary

💎Collection of algorithms and data structures

Java

2,025

1,040 commits

updated Sep 21, 2026

See the code

README

Collection of algorithms and data structures in C++, Java, Kotlin, Python and Rust

Data structures

Graph algorithms

String algorithms

Sorting algorithms

Sorting algorithms c++ java
N-th element java

Geometry algorithms

Segments intersection c++ java
Line operations java
Circle operations java
Convex hull c++ java
Point in polygon query c++ java
Closest pair of points java
Furthest pair of points c++
Implement quaternion (contribute a link or implementation)

Optimization

Simplex algorithm java

Numerical algorithms

Fast Fourier transform (FFT) c++ java
Long arithmetics c++
Fast subset convolution java
Fast Walsh-Hadamar transform java
Karatsuba multiplication java
Newton interpolation java
Laguerre's root-finding algorithm c++

Number theory

Combinatorics

Linear algebra

Gaussian elimination c++ java kotlin
Determinant calculation java
Matrix operations c++ java

https://indy256.com

algorithm

cpp

data-structures

java

kotlin

Significant stargazers

Ulugbek Abdullaev

154 followers · starred Nov 2017

Simon Lindholm

199 followers · starred Oct 2018

DimitrisJim

46 followers · starred Feb 2016

Alfredo Beaumont

205 followers · starred Jul 2020

Similar repos

AhmadElsagheer/Competitive-programming-library

Code library for competitive programming purposes.

2,489

williamfiset/algorithms

A collection of algorithms and data structures

18,775

EbTech/rust-algorithms

Common data structures and algorithms in Rust

3,984

xtaci/algorithms

Algorithms & Data structures in C++.

5,465

TheAlgorithms/C-Sharp

All algorithms implemented in C#.

8,200

EndlessCheng/codeforces-go

算法竞赛模板库 by 灵茶山艾府 💭💡🎈

8,770

sherxon/AlgoDS

Implementation of Algorithms and Data Structures, Problems and Solutions

3,430

trekhleb/javascript-algorithms

📝 Algorithms and data structures implemented in JavaScript with explanations and links to further…

196,671