Source | Problems | Notes |
---|---|---|
Project Euler | 865 | |
Advent of Code | 25 per year |
NOTE: Possible problem sources are:
- Project Euler: https://projecteuler.net/
- Advent of Code: https://adventofcode.com/
- HackerRank: https://www.hackerrank.com/
- Redit: https://www.reddit.com/r/dailyprogrammer
- LeetCode: https://leetcode.com/
- CodeSignal: https://codesignal.com/
- Codewars: https://www.codewars.com/
- Exercism: https://exercism.io/
- TopCoder: https://www.topcoder.com/
- CodeAbbey: https://www.codeabbey.com/
- CodeEval: https://www.codeeval.com/
- InterviewBit: https://www.interviewbit.com/
- Code Forces: https://codeforces.com/
- Code Chef: https://www.codechef.com/
- Programmr: https://www.programmr.com/exercises
- CoderByte: https://www.coderbyte.com/challenges
- Timus: http://acm.timus.ru/problemset.aspx
- SPOJ: https://www.spoj.com/
- HackerEarth: https://www.hackerearth.com/
- CodinGame: https://www.codingame.com/
- Karan's Project: https://github.com/karan/Projects
- CodeKata: http://codekata.com/
- 99 problems: https://wiki.haskell.org/H-99:_Ninety-Nine_Haskell_Problems