This is a portal (gateway) for the International Olympiad in Informatics community. It contains lots of links to get you started.

Getting started:

• Introduce yourself
• Value proposition (and feedback)
• Help us improve (i.e. how you can contribute)

Concepts and problems (~10 concepts, ~45 problems, ~40 have hints):

• Beginner (~10 concepts, ~20 problems, ~20 have hints)
• Intermediate (1 concept, ~15 problems, ~15 have hints)
• Advanced (1 concept, ~10 problems, ~10 have hints)
• List of contests (2016-2017 season)

GitHub repositories with solutions to IOI problems:

• GitHub repository
• IOI solutions in C++

Country specific material:

• Indian Computing Olympiad, aka Indian National Olympiad in Informatics
• Bangladesh Informatics Olympiad
• British Informatics Olympiad
• Egyptian Olympiad in Informatics
• Canadian Computing Competition

Stories of people who have done this before (i.e. alumni):

• Malvika Raj Joshi (India: '14, '15, '16)
• Akshat Bubna (India: '13, '14)
• Pushkar Mishra (India: '14)
• Archit Karandikar (India: '10)

Other training sites:

• How to Win Coding Competitions: Secrets of Champions (EdX Course)
• USACO training material and monthly contests
• Australian Informatics Training Site
• Online Study Material by IARCS
• Past IOI problems and (most) solutions and (most) test data
• IOI Syllabus
• Platforms
• Other external resources

Last updated: 22nd November, 2016