Welcome to Codebreaker!

Codebreaker is the official platform for Singapore Informatics Olympiad training and contests. We have run selection for the International Olympiad in Informatics for the delegations of Singapore and Indonesia, as well as countless official national and school training programmes.

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ippt 103
staircase 93
monsters 86
flipcards 75
breakfast 64

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monsters 552
flipcards 477
helloworld 385
flip 359
ippt 302