| #16201 | 字符串SCOI 2024 Day 1 | |
| #16202 | 公园SCOI 2024 Day 1 | |
| #16203 | 重整山河SCOI 2024 Day 1 | |
| #16204 | 交换SCOI 2024 Day 2 | |
| #16205 | 网格SCOI 2024 Day 2 | |
| #16206 | L 型覆盖SCOI 2024 Day 2 | |
| #16207 | EngineersRMI 2025 Day 1 | |
| #16208 | Guess PermutationRMI 2025 Day 1Interactive | |
| #16209 | SquirrelRMI 2025 Day 1 | |
| #16210 | CheapAIRMI 2025 Day 2 | |
| #16211 | King of RatsRMI 2025 Day 2 | |
| #16212 | OrangesRMI 2025 Day 2 | |
| #16213 | Divvying UpUKIEPC 2020 | |
| #16214 | Moderate PaceUKIEPC 2020 | |
| #16215 | Constructing a matrix | |
| #16216 | Constructing a coloring | |
| #16217 | Constructing a circuit | |
| #16218 | 梦幻布丁HNOI 2009 Day 1 | |
| #16219 | 通往城堡之路HNOI 2009 Day 1 | |
| #16220 | 有趣的数列HNOI 2009 Day 1 | |
| #16221 | 最小圈HNOI 2009 Day 1 | |
| #16222 | 永无乡HNOI 2009 Day 2 | |
| #16223 | 图的同构计数（图的同构记数）HNOI 2009 Day 2 | |
| #16224 | 双递增序列HNOI 2009 Day 2 | |
| #16225 | 积木游戏HNOI 2009 Day 2 | |
| #16226 | Depth of Interval | |
| #16227 | Increasing Swaps | |
| #16228 | Sum of Three Inversions | |
| #16229 | Grid Path Tree | |
| #16230 | Max Twice Subsequences | |
| #16231 | Decimal Pyramid | |
| #16232 | Don't Make ZeroInteractive | |
| #16233 | Akari Counting | |
| #16234 | Subgrid Connected Components | |
| #16235 | Divide Polygon | |
| #16236 | Two-Way CommunicationCommunication | |
| #16237 | Colorful Quadrilateral | |
| #16238 | Many Approaches | |
| #16239 | BeetleBaltic OI 2009 Day 1 | |
| #16240 | Candy MachineBaltic OI 2009 Day 1 | |
| #16241 | Subway Signalling ErrorBaltic OI 2009 Day 1 | |
| #16242 | RectangleBaltic OI 2009 Day 2 | |
| #16243 | TriangulationBaltic OI 2009 Day 2 | |
| #16244 | MonumentBaltic OI 2009 Day 2 | |
| #16245 | Stupid taskBaltic OI 2009 Practice | |
| #16246 | Radio TransmissionBaltic OI 2009 Practice | |
| #16247 | 火柴游戏SHOI 2012 Day 1SHTSC 2012 Day 1 | |
| #16248 | 信用卡凸包SHOI 2012 Day 1SHTSC 2012 Day 1 | |
| #16249 | 随机树SHOI 2012 Day 1SHTSC 2012 Day 1 | |
| #16250 | 回家的路SHOI 2012 Day 2SHTSC 2012 Day 2 | |
| #16251 | 排序SHOI 2012 Day 2SHTSC 2012 Day 2 | |
| #16252 | 魔法树SHOI 2012 Day 2SHTSC 2012 Day 2 | |
| #16253 | 银河英雄传说NOI 2002 Day 1 | |
| #16254 | 调皮的小孩NOI 2002 Day 1Interactive | |
| #16255 | 贪吃的九头龙NOI 2002 Day 1 | |
| #16256 | 荒岛野人NOI 2002 Day 2 | |
| #16257 | 新俄罗斯方块NOI 2002 Day 2Output Only | |
| #16258 | 机器人 M 号NOI 2002 Day 2 | |
| #16259 | Ещё одна $n$-мерная шоколадкаOpen OI 2022/2023 Day 1 | |
| #16260 | Цены на бензинOpen OI 2022/2023 Day 1 | |
| #16261 | Королевская задачаOpen OI 2022/2023 Day 1 | |
| #16262 | Музыкальный фестивальOpen OI 2022/2023 Day 1 | |
| #16263 | Задачечка на подстрочечкиOpen OI 2022/2023 Day 2 | |
| #16264 | Покупка подарковOpen OI 2022/2023 Day 2 | |
| #16265 | Поиск фальшивых монетOpen OI 2022/2023 Day 2Interactive | |
| #16266 | Путь домойOpen OI 2022/2023 Day 2 | |
| #16275 | 合唱队HNOI 2010 Day 1 | |
| #16276 | 平面图判定HNOI 2010 Day 1 | |
| #16277 | 物品调度HNOI 2010 Day 1 | |
| #16278 | 公交线路HNOI 2010 Day 1 | |
| #16279 | 取石子游戏HNOI 2010 Day 2 | |
| #16280 | 城市建设HNOI 2010 Day 2 | |
| #16281 | 弹飞绵羊HNOI 2010 Day 2 | |
| #16282 | 矩阵HNOI 2010 Day 2 | |
| #16283 | Chip ExchangeUSACO 2026 First Contest Bronze | |
| #16284 | COW SplitsUSACO 2026 First Contest Bronze | |
| #16285 | PhotoshootUSACO 2026 First Contest Bronze | |
| #16286 | Lineup QueriesUSACO 2026 First Contest Silver | |
| #16287 | Mooclear ReactorUSACO 2026 First Contest Silver | |
| #16288 | Sliding Window SummationUSACO 2026 First Contest Silver | |
| #16289 | COW TraversalsUSACO 2026 First Contest Gold | |
| #16290 | Milk BucketsUSACO 2026 First Contest Gold | |
| #16291 | SupervisionUSACO 2026 First Contest Gold | |
| #16292 | Hoof, Paper, Scissors TriplesUSACO 2026 First Contest Platinum | |
| #16293 | Lineup Counting QueriesUSACO 2026 First Contest Platinum | |
| #16294 | Pluses and MinusesUSACO 2026 First Contest Platinum | |
| #16295 | 发牌SHOI 2013 Day 1SHTSC 2013 Day 1 | |
| #16296 | 阶乘字符串SHOI 2013 Day 1SHTSC 2013 Day 1 | |
| #16297 | 超级跳马SHOI 2013 Day 1SHTSC 2013 Day 1 | |
| #16298 | 扇形面积并SHOI 2013 Day 2SHTSC 2013 Day 2 | |
| #16299 | 发微博SHOI 2013 Day 2SHTSC 2013 Day 2 | |
| #16300 | 二重镇SHOI 2013 Day 2SHTSC 2013 Day 2 | |