| #8902 | ВидеонаблюдениеROI 2023 Day 1 | |
| #8903 | Тайное посланиеROI 2023 Day 1Communication | |
| #8904 | Рекорды и антирекордыROI 2023 Day 1 | |
| #8905 | Ультра mexROI 2023 Day 1 | |
| #8906 | Улитка на склонеROI 2023 Day 2 | |
| #8907 | КонференцияROI 2023 Day 2 | |
| #8908 | Яблоки по корзинамROI 2023 Day 2 | |
| #8909 | Выполнить план, но не перевыполнитьROI 2023 Day 2Interactive | |
| #8910 | 0417 t1 | |
| #8911 | 0417 t2 | |
| #8912 | 0417 t3 | |
| #8913 | 0418 t1 | |
| #8914 | 0418 t2 | |
| #8915 | 0418 t3 | |
| #8916 | Беспилотная аэрологистикаROI 2024 Day 1 | |
| #8917 | 2026ROI 2024 Day 1 | |
| #8918 | Кейс на рейсROI 2024 Day 1 | |
| #8919 | Рамазан и капустаROI 2024 Day 1 | |
| #8920 | Восстание газонокосилокROI 2024 Day 2 | |
| #8921 | Интерактивные переходыROI 2024 Day 2 | |
| #8922 | Гонка дроновROI 2024 Day 2 | |
| #8923 | За связь без перебоевROI 2024 Day 2 | |
| #8932 | BingoZhejiang Provincial 2024 | |
| #8933 | Simulated UniverseZhejiang Provincial 2024 | |
| #8934 | Challenge NPCZhejiang Provincial 2024 | |
| #8935 | Puzzle: Easy as ScrabbleZhejiang Provincial 2024 | |
| #8936 | Team ArrangementZhejiang Provincial 2024 | |
| #8937 | Stage: AgausscrabZhejiang Provincial 2024 | |
| #8938 | Crawling on a TreeZhejiang Provincial 2024 | |
| #8939 | PermutationZhejiang Provincial 2024Interactive | |
| #8940 | Piggy SortZhejiang Provincial 2024 | |
| #8941 | Even or Odd Spanning TreeZhejiang Provincial 2024 | |
| #8942 | Sugar Sweet 3Zhejiang Provincial 2024 | |
| #8943 | Challenge Matrix MultiplicationZhejiang Provincial 2024 | |
| #8944 | TrianglesZhejiang Provincial 2024 | |
| #8945 | 区间计数CTT 2022 Day 1 | |
| #8946 | 一眼丁真CTT 2022 Day 1 | |
| #8947 | 白兔迷宫CTT 2022 Day 1 | |
| #8948 | 报复社会CTT 2022 Day 2 | |
| #8949 | 赫露艾斯塔CTT 2022 Day 2 | |
| #8950 | 树据结构CTT 2022 Day 2 | |
| #8951 | 澡堂CTT 2022 Day 3 | |
| #8952 | 解谜游戏CTT 2022 Day 3 | |
| #8953 | 士兵游戏CTT 2022 Day 3 | |
| #8954 | 一般路过串串题CTT 2022 Day 4 | |
| #8955 | 排列CTT 2022 Day 4Interactive | |
| #8956 | 欧拉？欧拉！CTT 2022 Day 4 | |
| #8957 | Interplanetary TraditionsPetrozavodsk Winter 2024 Day 5 | |
| #8958 | Neutral SpectatorPetrozavodsk Winter 2024 Day 5 | |
| #8959 | Nasty OperationsPetrozavodsk Winter 2024 Day 5 | |
| #8960 | Old Solution MethodsPetrozavodsk Winter 2024 Day 5 | |
| #8961 | Wide ExpressionPetrozavodsk Winter 2024 Day 5 | |
| #8962 | Immensely Long ExpressionsPetrozavodsk Winter 2024 Day 5 | |
| #8963 | Sending SubstringsPetrozavodsk Winter 2024 Day 5 | |
| #8964 | Expected DistancePetrozavodsk Winter 2024 Day 5 | |
| #8965 | JeloIzborne Pripreme 2021 Day 1 | |
| #8966 | KukacIzborne Pripreme 2021 Day 1Interactive | |
| #8967 | ŽupanijeIzborne Pripreme 2021 Day 1 | |
| #8968 | CijepiseIzborne Pripreme 2021 Day 2 | |
| #8969 | NovineIzborne Pripreme 2021 Day 2Communication | |
| #8970 | TiketIzborne Pripreme 2021 Day 2 | |
| #8971 | Adrien and AustinNanjing Regional 2018 | |
| #8972 | TournamentNanjing Regional 2018 | |
| #8973 | Cherry and ChocolateNanjing Regional 2018 | |
| #8974 | Country MeowNanjing Regional 2018 | |
| #8975 | Eva and Euro coinsNanjing Regional 2018 | |
| #8976 | FrankNanjing Regional 2018 | |
| #8977 | PyramidNanjing Regional 2018 | |
| #8978 | Huge DiscountNanjing Regional 2018 | |
| #8979 | Magic PotionNanjing Regional 2018 | |
| #8980 | Prime GameNanjing Regional 2018 | |
| #8981 | Kangaroo PuzzleNanjing Regional 2018 | |
| #8982 | Lagrange the ChefNanjing Regional 2018 | |
| #8983 | Mediocre String ProblemNanjing Regional 2018 | |
| #8984 | BalatroNAQ 2024 | |
| #8985 | Bikes and BarricadesNAQ 2024 | |
| #8986 | Call for ProblemsNAQ 2024 | |
| #8987 | Colorful TreesNAQ 2024 | |
| #8988 | Dishonest LotteryNAQ 2024 | |
| #8989 | Ellipse EclipseNAQ 2024 | |
| #8990 | Gears and AxlesNAQ 2024 | |
| #8991 | Genetic ReconstructionNAQ 2024 | |
| #8992 | Light UpNAQ 2024Puzzle: | |
| #8993 | Menger SpongeNAQ 2024 | |
| #8994 | Rhythm FlowNAQ 2024 | |
| #8995 | SnakeNAQ 2024 | |
| #8996 | Club members 2XXVI Olimpiada Informatyczna – I etapPOI 2018 Stage 1 | |
| #8997 | NonchalanceXXVI Olimpiada Informatyczna – I etapPOI 2018 Stage 1 | |
| #8998 | Pair of necklacesXXVI Olimpiada Informatyczna – I etapPOI 2018 Stage 1 | |
| #8999 | SubsequencesXXVI Olimpiada Informatyczna – I etapPOI 2018 Stage 1 | |
| #9000 | Robby the little robotXXVI Olimpiada Informatyczna – I etapPOI 2018 Stage 1 | |