High school olympiads

IOI and other international high school olympiads

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Nordic Olympiad in Informatics

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2026AlarmsBackroomsCatching ApplesName Change
2025Dodgeball DiplomacyGarbage CollectionXoracle
2024Anime ShopsChair GameThin Ice
2023ChatNOIIce Cream MachinesIsland Alliances
2022Hipster JazzPower GridQuark Microscopy
2021Amazing WhispersPearlsThe Elk
2020Apple DeliveryBricksChristmas Gifts
2019Distance CodeThieves and PrisonsGraph Ordering
2018French FriesMysterious ArrayNordic Camping
2017IP over Avian CarriersSubwayYule Lads

International Olympiad in Informatics

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2025Day 1SouvenirsTriplesWorld Map
Day 2FestivalMigrationsObstacles
2024Day 1NileMessageTree
Day 2HieroglyphsMosaicSphinx's Riddle
2023Day 1Closing TimeLongest TripSoccer Stadium
Day 2Beech TreeOvertakingRobot Contest