| #18301 | Tsunami2023 KAIST RUN Spring Contest | |
| #18302 | Remix2023 KAIST RUN Spring Contest | |
| #18303 | Good Night2023 KAIST RUN Spring Contest | |
| #18304 | Arranging CowsUSACO 2026 US Open Platinum | |
| #18305 | Haybale StacksUSACO 2026 US Open Platinum | |
| #18306 | Perfect Binary TreesUSACO 2026 US Open Platinum | |
| #18307 | 华容道Shandong Provincial 2026 | |
| #18308 | 字典 2Shandong Provincial 2026 | |
| #18309 | 会议日程Shandong Provincial 2026 | |
| #18310 | 最大数码 2Shandong Provincial 2026 | |
| #18311 | 简单的构造题Shandong Provincial 2026 | |
| #18312 | 礼物归位Shandong Provincial 2026 | |
| #18313 | 吸血鬼爬行者Shandong Provincial 2026 | |
| #18314 | 拼图Shandong Provincial 2026 | |
| #18315 | 版本号Shandong Provincial 2026 | |
| #18316 | 插松枝Shandong Provincial 2026 | |
| #18317 | 最小生成树Shandong Provincial 2026 | |
| #18318 | 分数迭代Shandong Provincial 2026 | |
| #18319 | 博物馆奇妙夜 2Shandong Provincial 2026 | |
| #18320 | 卡卡杀Heilongjiang Provincial 2026 | |
| #18321 | 最大数码 2Heilongjiang Provincial 2026 | |
| #18322 | 圆桌会议Heilongjiang Provincial 2026 | |
| #18323 | 格兰法洛Heilongjiang Provincial 2026 | |
| #18324 | 乐乐的杏花Heilongjiang Provincial 2026 | |
| #18325 | 复读机Heilongjiang Provincial 2026 | |
| #18326 | 卡卡数Heilongjiang Provincial 2026 | |
| #18327 | 周二会员日Heilongjiang Provincial 2026 | |
| #18328 | 假想对冲Heilongjiang Provincial 2026 | |
| #18329 | 秋水横渡Heilongjiang Provincial 2026 | |
| #18330 | 卡卡拆Heilongjiang Provincial 2026 | |
| #18331 | 猪猪车Heilongjiang Provincial 2026 | |
| #18332 | 六个核桃Heilongjiang Provincial 2026 | |
| #18333 | Run Number2024 KAIST RUN Spring Contest | |
| #18334 | Sequence and Queries2024 KAIST RUN Spring Contest | |
| #18335 | Construct a Graph2024 KAIST RUN Spring Contest | |
| #18336 | Closet2024 KAIST RUN Spring Contest | |
| #18337 | Two Histograms2024 KAIST RUN Spring Contest | |
| #18338 | Discount Event2024 KAIST RUN Spring Contest | |
| #18339 | One, Two, Three2024 KAIST RUN Spring Contest | |
| #18340 | Tree Kadane2024 KAIST RUN Spring Contest | |
| #18341 | AbsenteeismMoscow International Workshops 2020 Day 7 | |
| #18342 | Fakes and ShidgetMoscow International Workshops 2020 Day 7 | |
| #18343 | Cyclically Shifted MazeMoscow International Workshops 2020 Day 7 | |
| #18344 | Two Pirates - 2Moscow International Workshops 2020 Day 7 | |
| #18345 | Powerless MageMoscow International Workshops 2020 Day 7 | |
| #18346 | Exactly One PointMoscow International Workshops 2020 Day 7 | |
| #18347 | Lexicographically Minimal SubsequenceMoscow International Workshops 2020 Day 7 | |
| #18348 | Video Reviews - 2Moscow International Workshops 2020 Day 7 | |
| #18349 | Chess TournamentMoscow International Workshops 2020 Day 7 | |
| #18350 | Lost IslandMoscow International Workshops 2020 Day 7 | |
| #18351 | BloodseekerMoscow International Workshops 2020 Day 7 | |
| #18352 | Not the Longest Increasing SubsequenceMoscow International Workshops 2020 Day 7 | |
| #18353 | Binary Search TreeMoscow International Workshops 2020 Day 7 | |
| #18354 | Premove CheckmateMoscow International Workshops 2020 Day 7 | |
| #18355 | 贝贝拯救FJCPCFujian Provincial 2026 | |
| #18356 | 排考场Fujian Provincial 2026 | |
| #18357 | Of course，宁宁Fujian Provincial 2026 | |
| #18358 | 哦 搞错了Fujian Provincial 2026 | |
| #18359 | 胖虎与线段树Fujian Provincial 2026 | |
| #18360 | 青青草原扛把子Fujian Provincial 2026 | |
| #18361 | 变幻自在Fujian Provincial 2026 | |
| #18362 | 抱歉，这没有集美Fujian Provincial 2026 | |
| #18363 | 限号出行Fujian Provincial 2026 | |
| #18364 | 高级程序设计Fujian Provincial 2026 | |
| #18365 | 高阶情景口语Fujian Provincial 2026 | |
| #18366 | 蛇小弟与奶龙Fujian Provincial 2026 | |
| #18367 | 夜空之猴Fujian Provincial 2026 | |
| #18368 | Manhattan Cycle | |
| #18369 | Japanese Digits | |
| #18370 | Map1e | |
| #18371 | Hidden $k$-Tuples | |
| #18372 | Roco Kingdom World | |
| #18373 | Counting Trees | |
| #18374 | Sequence Operation 1 | |
| #18375 | Graph | |
| #18376 | Koishi Is Number One | |
| #18377 | Reverse Inversion | |
| #18378 | Twin Spanning Trees | |
| #18379 | Straight | |
| #18380 | Crystal Castle | |
| #18388 | 태권도와 복싱을 합한 운동 | |
| #18389 | 3단 가시 | |
| #18390 | 피자 (U+1F355 U+1F60B U+1F92E) | |
| #18391 | 쿠옹이의 궁금증 | |
| #18392 | 간단한 동전 문제 (Easy) | |
| #18393 | 간단한 동전 문제 (Hard) | |
| #18394 | 특별한 정점 | |
| #18395 | 부분수열 고르기 | |
| #18396 | 잔돈 싫어 | |
| #18397 | 수열 재활용 | |
| #18398 | MEX의 MEX | |
| #18399 | 부도덕한 그래프 (Easy) | |
| #18400 | 부도덕한 그래프 (Hard) | |