| #10901 | Strange PermutationsShanghai Regional 2021 | |
| #10902 | Strange MatricesShanghai Regional 2021 | |
| #10903 | Strange FractionsShanghai Regional 2021 | |
| #10904 | Strange IntegersShanghai Regional 2021 | |
| #10905 | Kaiji!Shanghai Regional 2021 | |
| #10906 | Edge GroupsShanghai Regional 2021 | |
| #10907 | Life is a GameShanghai Regional 2021 | |
| #10908 | Steadily Growing SteamShanghai Regional 2021 | |
| #10909 | Two Binary Strings ProblemShanghai Regional 2021 | |
| #10910 | Circle of LifeShanghai Regional 2021 | |
| #10911 | Tri-Regular Graph ProblemShanghai Regional 2021 | |
| #10912 | Harmony in HarmonyShanghai Regional 2021 | |
| #10913 | AD 2020Zhejiang Provincial 2020 | |
| #10914 | Bin Packing ProblemZhejiang Provincial 2020 | |
| #10915 | Crossword ValidationZhejiang Provincial 2020 | |
| #10916 | Dividing the PointsZhejiang Provincial 2020 | |
| #10917 | Easy DP ProblemZhejiang Provincial 2020 | |
| #10918 | Finding a SampleZhejiang Provincial 2020 | |
| #10919 | GlidingZhejiang Provincial 2020 | |
| #10920 | Huge CloudsZhejiang Provincial 2020 | |
| #10921 | Invoking the MagicZhejiang Provincial 2020 | |
| #10922 | Just an Old ProblemZhejiang Provincial 2020 | |
| #10923 | Killing the Brute-forceZhejiang Provincial 2020 | |
| #10924 | List of ProductsZhejiang Provincial 2020 | |
| #10925 | HijerarhijaIzborne Pripreme 2025 Day 1 | |
| #10926 | PrometIzborne Pripreme 2025 Day 1 | |
| #10927 | VrstaIzborne Pripreme 2025 Day 1Interactive | |
| #10928 | StabloIzborne Pripreme 2025 Day 2Interactive | |
| #10929 | TravaIzborne Pripreme 2025 Day 2 | |
| #10930 | UsisavačIzborne Pripreme 2025 Day 2 | |
| #10931 | 对合排列 | |
| #10932 | 彩色弹珠 | |
| #10933 | 最大值 | |
| #10934 | Another 2048 Problem | |
| #10935 | Big Kingdom | |
| #10936 | Construct The Array | |
| #10937 | Dictator | |
| #10938 | Electricity and Magic | |
| #10939 | Fight | |
| #10940 | Go and restore! | |
| #10941 | Hidden Integer | |
| #10942 | Infinite String | |
| #10943 | Just do it | |
| #10944 | K nodes and K edges | |
| #10945 | Light Source | |
| #10946 | Fire on FieldSeoul Regional 2019 | |
| #10947 | Gene TreeSeoul Regional 2019 | |
| #10948 | IslandsSeoul Regional 2019 | |
| #10949 | Ladder GameSeoul Regional 2019 | |
| #10950 | Network VulnerabilitySeoul Regional 2019 | |
| #10951 | QuadrilateralsSeoul Regional 2019 | |
| #10952 | Same ColorSeoul Regional 2019 | |
| #10953 | Strike ZoneSeoul Regional 2019 | |
| #10954 | Thread KnotsSeoul Regional 2019 | |
| #10955 | TriangulationSeoul Regional 2019 | |
| #10956 | WasherSeoul Regional 2019 | |
| #10957 | What's Mine is MineSeoul Regional 2019 | |
| #10958 | All Pairs SimilarityUSACO 2024 December Platinum | |
| #10959 | It's Mooin' TimeUSACO 2024 December Platinum | |
| #10960 | Maximize Minimum DifferenceUSACO 2024 December Platinum | |
| #10961 | DFS OrderUSACO 2025 January Platinum | |
| #10962 | Shock WaveUSACO 2025 January Platinum | |
| #10963 | Watering the PlantsUSACO 2025 January Platinum | |
| #10964 | Min Max SubarraysUSACO 2025 February Platinum | |
| #10965 | Transforming PairsUSACO 2025 February Platinum | |
| #10966 | True or False TestUSACO 2025 February Platinum | |
| #10967 | Forklift CertifiedUSACO 2025 US Open Platinum | |
| #10968 | Lazy SortUSACO 2025 US Open Platinum | |
| #10969 | Package PickupUSACO 2025 US Open Platinum | |
| #10970 | Array SimilarityUniversal Cup | |
| #10971 | Bracket Character FrequencyUniversal Cup | |
| #10972 | Card DeckUniversal Cup | |
| #10973 | Digits of Prefix ProductUniversal Cup | |
| #10974 | Edge Coloring ProblemUniversal Cup | |
| #10975 | Fourier CoefficientsUniversal Cup | |
| #10976 | Guarding PlanUniversal Cup | |
| #10977 | Hidden Sequence RotationUniversal CupInteractive | |
| #10978 | Insert AB or BAUniversal Cup | |
| #10979 | Journey through the FractalUniversal Cup | |
| #10980 | K-rep ArrayUniversal Cup | |
| #10981 | LIS TriangleUniversal Cup | |
| #10982 | Minimum Distance TreeUniversal Cup | |
| #10983 | Nice BouquetsUniversal Cup | |
| #10984 | One Different InequalityUniversal Cup | |
| #10985 | Perfect Suika Game on a TreeUniversal Cup | |
| #10986 | Quadratic PiecesUniversal Cup | |
| #10987 | ChessPA 2009 Próbny Finał | |
| #10988 | Rectangles 2PA 2009 Próbny Finał | |
| #10989 | Type Two de Bruijn SequencesPA 2009 Finał | |
| #10990 | Fibonacci MachinePA 2009 Finał | |
| #10991 | ColouringPA 2009 Finał | |
| #10992 | Programming ContestPA 2009 Finał | |
| #10993 | PermutationsPA 2009 Finał | |
| #10994 | WatchmenPA 2009 Finał | |
| #10995 | TramPA 2009 Finał | |
| #10996 | TransfersXXV Olimpiada Informatyczna – II etapPOI 2017 Stage 2 | |
| #10997 | Bike pathsXXV Olimpiada Informatyczna – II etapPOI 2017 Stage 2 | |
| #10998 | ConductorXXV Olimpiada Informatyczna – II etapPOI 2017 Stage 2 | |
| #10999 | TransceiversXXV Olimpiada Informatyczna – II etapPOI 2017 Stage 2 | |
| #11000 | Book of poetryXXV Olimpiada Informatyczna – II etapPOI 2017 Stage 2 | |