| #13201 | 挂缀CTSC 2007 Day 2 | |
| #13202 | 激光坦克CTSC 2007 Day 2Output Only | |
| #13203 | 魔术眼镜盒CTSC 2005 Day 1 | |
| #13204 | 合并正方形CTSC 2005 Day 1 | |
| #13205 | 生日晚会CTSC 2005 Day 1Output Only | |
| #13206 | 玩具的重量CTSC 2005 Day 2 | |
| #13207 | 无尽之旅CTSC 2005 Day 2Output Only | |
| #13208 | 孤独的牧羊女CTSC 2005 Day 2 | |
| #13209 | Intersect Until You're Sick of ItPetrozavodsk Summer 2014 Day 3 | |
| #13210 | Binary PalindromesPetrozavodsk Summer 2014 Day 3 | |
| #13211 | ChessPetrozavodsk Summer 2014 Day 3 | |
| #13212 | Minimum CoverPetrozavodsk Summer 2014 Day 3 | |
| #13213 | Black-and-white SquarePetrozavodsk Summer 2014 Day 3 | |
| #13214 | Palindromes and Superpower-2Petrozavodsk Summer 2014 Day 3 | |
| #13215 | NanomatryoshkasPetrozavodsk Summer 2014 Day 3 | |
| #13216 | NikitaPetrozavodsk Summer 2014 Day 3 | |
| #13217 | Kirill the Gardener - 2Petrozavodsk Summer 2014 Day 3 | |
| #13218 | 31 palindromesPetrozavodsk Summer 2014 Day 3 | |
| #13219 | Non-binary PalindromesPetrozavodsk Summer 2014 Day 3 | |
| #13220 | 气象学 | |
| #13221 | 巴塞罗那 | |
| #13222 | 重映射 | |
| #13223 | InversionPetrozavodsk Summer 2014 Day 5 | |
| #13224 | Paths on the TreePetrozavodsk Summer 2014 Day 5 | |
| #13225 | Least Common MultiplePetrozavodsk Summer 2014 Day 5 | |
| #13226 | Linear Recursive SequencePetrozavodsk Summer 2014 Day 5 | |
| #13227 | Parenthese SequencePetrozavodsk Summer 2014 Day 5 | |
| #13228 | Count on the PathPetrozavodsk Summer 2014 Day 5 | |
| #13229 | PermutationPetrozavodsk Summer 2014 Day 5 | |
| #13230 | Queries on the SubtreePetrozavodsk Summer 2014 Day 5 | |
| #13231 | Exclusive OrPetrozavodsk Summer 2014 Day 5 | |
| #13232 | ExpectationPetrozavodsk Summer 2014 Day 5 | |
| #13233 | Palindromic RefrainPetrozavodsk Summer 2014 Day 5 | |
| #13234 | 人生FJWC 2020 Day 1 | |
| #13235 | 赢家FJWC 2020 Day 1 | |
| #13236 | 黑红兔FJWC 2020 Day 1 | |
| #13237 | 楼房搭建FJWC 2020 Day 2 | |
| #13238 | 手链强化FJWC 2020 Day 2 | |
| #13239 | 数字收藏FJWC 2020 Day 2 | |
| #13240 | 挖宝FJWC 2020 Day 3 | |
| #13241 | 图FJWC 2020 Day 3 | |
| #13242 | 字符串FJWC 2020 Day 3 | |
| #13243 | 迫害 DJFJWC 2020 Day 4 | |
| #13244 | 夕张的改造FJWC 2020 Day 4 | |
| #13245 | 亚特兰大FJWC 2020 Day 4 | |
| #13246 | rngFJWC 2020 Day 5 | |
| #13247 | lgFJWC 2020 Day 5 | |
| #13248 | pmFJWC 2020 Day 5 | |
| #13264 | 重复子串WC 2007Output Only | |
| #13265 | 疯狂赛车WC 2007 | |
| #13266 | 剪刀石头布WC 2007 | |
| #13267 | 异或和 | |
| #13279 | Alice, Bob, and two arrays.Open OI 2024/2025 Day 1 | |
| #13280 | The arithmetic exerciseOpen OI 2024/2025 Day 1 | |
| #13281 | Dreaming is not harmfulOpen OI 2024/2025 Day 1 | |
| #13282 | Cute SubsequencesOpen OI 2024/2025 Day 1 | |
| #13283 | Strong Connectivity Strikes BackOpen OI 2024/2025 Day 2 | |
| #13284 | Best RunnerOpen OI 2024/2025 Day 2 | |
| #13285 | Card FlipOpen OI 2024/2025 Day 2 | |
| #13286 | Order StatisticsOpen OI 2024/2025 Day 2 | |
| #13287 | 函数ZJOI 2009 Day 1 | |
| #13288 | 假期的宿舍ZJOI 2009 Day 1 | |
| #13289 | 硬币游戏ZJOI 2009 Day 1 | |
| #13290 | 多米诺骨牌ZJOI 2009 Day 1 | |
| #13291 | 硬币游戏ZJOI 2009 Day 2 | |
| #13292 | 狼和羊的故事ZJOI 2009 Day 2 | |
| #13293 | 取石子游戏ZJOI 2009 Day 2 | |
| #13294 | 对称的正方形ZJOI 2009 Day 2 | |
| #13295 | CollectingMushroomsNOI 2018 Final | |
| #13296 | JourneyNOI 2018 Final | |
| #13297 | LightningRodNOI 2018 Final | |
| #13298 | CityMappingNOI 2018 FinalInteractive | |
| #13299 | SafetyNOI 2018 Final | |
| #13300 | Tour de ByteotiaXIX Olimpiada Informatyczna – II etapPOI 2011/2012 Stage 2 | |