Pour commencer

• Du CM1 à la terminale : Castor informatique
• Préparation aux olympiades IOI avant le bac : France-ioi
• Jusqu’à 20 ans : Prologin
  • Qualification : jusqu’en janvier
  • Épreuves régionales : janvier-mars
  • Finale : en mai

Yearly competitions

• Google Code Jam
  • This competition not longer exist since 2023
• Google Hash Code
  • This competition not longer exist since 2023
• Facebook Hacker Cup
• Microsoft Bubblecup
  • A bit less known that the previous ones, but has good booklets explaining solutions to previous competitions
• ICPC, SWERC
  • The International Collegiate Programming Contest, in the South-West European region. Look for your region.
  • Usually in February
  • French: Compte rendu de SWERC 2016
• ACM-ICFP
  • Functional programming contest
  • Usually in August
• Advent of Code
  • In December. Not very interesting from algorithmic point of view, it is more about programming quickly.

Competitions for regular training & online judges

Host your competition:

• Kattis
• SPOJ
• A2OJ Ahmed Aly Online Judge
• Mooshak
• Try the open source Qingdao University Online Judge & fork them on GitHub.
• If you want something more lightweight, try prologin/camisole.

Other popular websites:

• Codeforces
• CodeChef
• Codin’Game
• HackerRank
• USACO
• TopCoder
• Project Euler
• UVA
• France-ioi

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Table of contents

• Concours ICPC
• Conseils Google Hash Code