1.OI-wiki / OI-wiki
:star2: Wiki of OI / ICPC for everyone. （某大型游戏线上攻略，内含炫酷算术魔法）
+59 stars
from 27,031 · score 4.09
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10 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
2.cp-algorithms / cp-algorithms
Algorithm and data structure articles for https://cp-algorithms.com (based on http://e-maxx.ru)
+56 stars
from 11,432 · score 4.04
3.kunal-kushwaha / DSA-Bootcamp-Java
This repository consists of the code samples, assignments, and notes for the Java data structures & algorithms + interview preparation bootcamp of WeMakeDevs.
+38 stars
from 24,057 · score 3.66
4.lnishan / awesome-competitive-programming
:gem: A curated list of awesome Competitive Programming, Algorithm and Data Structure resources
+29 stars
from 14,347 · score 3.40
5.kth-competitive-programming / kactl
KTH Algorithm Competition Template Library (... eller KTHs AC-tillverkande lapp)
+16 stars
from 3,581 · score 2.83
6.donnemartin / interactive-coding-challenges
120+ interactive Python coding interview challenges (algorithms and data structures). Includes Anki flashcards.
+15 stars
from 31,939 · score 2.77
7.keon / algorithms
Minimal examples of data structures and algorithms in Python
+11 stars
from 25,576 · score 2.48
8.judge0 / judge0
Robust, fast, scalable, and sandboxed open-source online code execution system for humans and AI.
+9 stars
from 4,492 · score 2.30
9.online-judge-tools / oj
Tools for various online judges. Downloading sample cases, generating additional test cases, testing your code, and submitting it.
+2 stars
from 1,174 · score 1.10
10.gaerae / awesome-algorithms-education
A curated list of courses, online judges, visualizations, books and competitions for learning and practicing algorithms. English and Korean.
+2 stars
from 907 · score 1.10