| #15901 | Irrigation InterlockNorthern Eurasia Finals 2025NERC 2025 | |
| #15902 | Jinx or JackpotNorthern Eurasia Finals 2025NERC 2025 | |
| #15903 | Knit the GridNorthern Eurasia Finals 2025NERC 2025 | |
| #15904 | LLM TrainingNorthern Eurasia Finals 2025NERC 2025 | |
| #15905 | Medical ParityNorthern Eurasia Finals 2025NERC 2025 | |
| #15906 | KingdomsCERC 2012 | |
| #15907 | Who wants to live forever?CERC 2012 | |
| #15908 | Chemist's vowsCERC 2012 | |
| #15909 | Non-boring sequencesCERC 2012 | |
| #15910 | Word equationsCERC 2012 | |
| #15911 | Farm and factoryCERC 2012 | |
| #15912 | Jewel heistCERC 2012 | |
| #15913 | DartsCERC 2012 | |
| #15914 | The Dragon and the knightsCERC 2012 | |
| #15915 | ConservationCERC 2012 | |
| #15916 | Graphic MadnessCERC 2012 | |
| #15917 | Quality-Adjusted Life-YearRocky Mountain Regional 2018 | |
| #15918 | Gwen's GiftRocky Mountain Regional 2018 | |
| #15919 | Forest for the TreesRocky Mountain Regional 2018 | |
| #15920 | H-IndexRocky Mountain Regional 2018 | |
| #15921 | Driving LanesRocky Mountain Regional 2018 | |
| #15922 | Treasure SpottingRocky Mountain Regional 2018 | |
| #15923 | Neighborhood WatchRocky Mountain Regional 2018 | |
| #15924 | Small ScheduleRocky Mountain Regional 2018 | |
| #15925 | Mr. Plow KingRocky Mountain Regional 2018 | |
| #15926 | Rainbow Road RaceRocky Mountain Regional 2018 | |
| #15927 | Hissing MicrophoneRocky Mountain Regional 2017 | |
| #15928 | Open-Pit MiningRocky Mountain Regional 2017 | |
| #15929 | Multiplication GameRocky Mountain Regional 2017 | |
| #15930 | Polyline SimplificationRocky Mountain Regional 2017 | |
| #15931 | Palindromic PasswordRocky Mountain Regional 2017 | |
| #15932 | Flow FreeRocky Mountain Regional 2017 | |
| #15933 | Decisions, DecisionsRocky Mountain Regional 2017 | |
| #15934 | Heart RateRocky Mountain Regional 2017 | |
| #15935 | InitialsRocky Mountain Regional 2017 | |
| #15936 | Particle CollisionRocky Mountain Regional 2017 | |
| #15937 | Frosh WeekRocky Mountain Regional 2017 | |
| #15938 | FizzBuzzRocky Mountain Regional 2016 | |
| #15939 | ElectionRocky Mountain Regional 2016 | |
| #15940 | Password HackingRocky Mountain Regional 2016 | |
| #15941 | Delivering GoodsRocky Mountain Regional 2016 | |
| #15942 | Studying For ExamsRocky Mountain Regional 2016 | |
| #15943 | Bumper-To-Bumper TrafficRocky Mountain Regional 2016 | |
| #15944 | Flow ShopRocky Mountain Regional 2016 | |
| #15945 | Nice NumbersRocky Mountain Regional 2016 | |
| #15946 | Stacking CupsRocky Mountain Regional 2016 | |
| #15947 | Stack ConstructionRocky Mountain Regional 2016 | |
| #15948 | A Little Leftover PizzaEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15949 | Andor Strikes AgainEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15950 | ARODEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15951 | But I Want to WinEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15952 | Chess SolitaireEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15953 | Fractional SequenceEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15954 | How Many Balls?East Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15955 | Move It, Slowpoke!East Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15956 | Number PyramidEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15957 | Polyomino TilingEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15958 | TriptychEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15959 | Valley GullsEast Central NA Regional 2025Northeast North America Regional 2025Greater New York Regional 2025 | |
| #15960 | BracketsBaltic OI 2012 Day 1 | |
| #15961 | MobileBaltic OI 2012 Day 1 | |
| #15962 | PeaksBaltic OI 2012 Day 1 | |
| #15963 | Fireworks in RightAnglelesBaltic OI 2012 Day 2 | |
| #15964 | MelodyBaltic OI 2012 Day 2 | |
| #15965 | TinyBaltic OI 2012 Day 2Output Only | |
| #15966 | Growing TreesBaltic OI 2011 Day 1 | |
| #15967 | Ice CreamBaltic OI 2011 Day 1 | |
| #15968 | Switch the Lamp OnBaltic OI 2011 Day 1 | |
| #15969 | Treasures and VikingsBaltic OI 2011 Day 1 | |
| #15970 | MeetingsBaltic OI 2011 Day 2 | |
| #15971 | PlagiarismBaltic OI 2011 Day 2 | |
| #15972 | PolygonBaltic OI 2011 Day 2 | |
| #15973 | Tree MirroringBaltic OI 2011 Day 2 | |
| #15974 | 祥子的工作 | |
| #15975 | 分解重构 | |
| #15976 | 小班课 | |
| #15977 | 树上的数 | |
| #15978 | 计数题 | |
| #15979 | 集合划分 | |
| #15980 | Boring Card GameCERC 2011 | |
| #15981 | Vigenére Cipher EncryptionCERC 2011 | |
| #15982 | Unique Encryption KeysCERC 2011 | |
| #15983 | Racing Car TrailCERC 2011 | |
| #15984 | Stack Machine ProgrammerCERC 2011 | |
| #15985 | Strange RegulationsCERC 2011 | |
| #15986 | Vigenére Cipher AnalysisCERC 2011 | |
| #15987 | The GrilleCERC 2011 | |
| #15988 | Unchanged PictureCERC 2011 | |
| #15989 | Stack Machine ExecutorCERC 2011 | |
| #15990 | ArdeniaCERC 2010 | |
| #15991 | BeastsCERC 2010 | |
| #15992 | Casting SpellsCERC 2010 | |
| #15993 | Defense LinesCERC 2010 | |
| #15994 | Enter The DragonCERC 2010 | |
| #15995 | Fields and FarmersCERC 2010 | |
| #15996 | GameCERC 2010 | |
| #15997 | Hanging HatsCERC 2010 | |
| #15998 | InsultsCERC 2010 | |
| #15999 | Justice for AllCERC 2010 | |
| #16000 | Automatized Mineral ClassificationCERC 2025Interactive | |