ID Problem Show tags Hide tags AC / Tried Difficulty
13232 P13225  [GCJ 2015 #2] Kiddie Pool 0 / 0 4
13237 P13230  [GCJ 2015 #3] Runaway Quail 0 / 0 6
13247 P13244  [GCJ 2014 Qualification] Cookie Clicker Alpha 0 / 0 3
13248 P13245  [GCJ 2014 Qualification] Minesweeper Master 0 / 0 4
13252 P13249  [GCJ 2014 #1A] Proper Shuffle 0 / 0 5
13263 P13260  [GCJ 2014 #3] Magical, Marvelous Tour 0 / 0 4
13272 P13269  [GCJ 2014 Finals] ARAM 0 / 0 7
13283 P13272  [NOI2025] 序列变换 0 / 0 7
13281 P13287  [GCJ 2013 #1A] Good Luck 0 / 0 6
13289 P13289  [GCJ 2013 #1B] Falling Diamonds 0 / 0 4
13294 P13292  [GCJ 2013 #1C] Pogo 0 / 0 5
13300 P13298  [GCJ 2013 #3] Cheaters 0 / 0 4
13301 P13299  [GCJ 2013 #3] Rural Planning [Unverified] 0 / 0 6
13303 P13301  [GCJ 2013 #3] Observation Wheel 0 / 0 6
13305 P13303  [GCJ 2013 Finals] Drummer 0 / 0 6
13306 P13304  [GCJ 2013 Finals] X Marks the Spot 0 / 0 7
13314 P13315  [GCJ 2012 #1A] Password Problem 0 / 0 4
13316 P13317  [GCJ 2012 #1A] Cruise Control 0 / 0 6
13320 P13318  [GCJ 2012 #1B] Safety in Numbers 0 / 0 4
13321 P13319  [GCJ 2012 #1B] Tide Goes In, Tide Goes Out 0 / 0 4
13322 P13320  [GCJ 2012 #1B] Equal Sums 0 / 0 6
13324 P13322  [GCJ 2012 #1C] Out of Gas 0 / 0 5
13327 P13325  [GCJ 2012 #2] Aerobics 0 / 0 4
13328 P13326  [GCJ 2012 #2] Mountain View 0 / 0 5
13337 P13333  [GCJ 2012 Finals] Upstairs/Downstairs 0 / 0 5
13339 P13335  [GCJ 2012 Finals] Twirling Towards Freedom 0 / 0 6
13309 P13337  【模板】线性规划 0 / 0 6
13341 P13338  三角形面积并 加强版 0 / 0 7
13343 P13339  [EGOI 2025] Gift Boxes 0 / 0 3
13344 P13340  [EGOI 2025] Dark Ride 0 / 0 5
13345 P13341  [EGOI 2025] Monster-Go 0 / 0 6
13347 P13343  [EGOI 2025] A String Problem 0 / 0 4
13350 P13346  [EGOI 2025] Laser Strike 0 / 0 7
13353 P13347  「ZYZ 2025」地铁 0 / 0 2
12975 P13348  「ZYZ 2025」未选择的路 0 / 0 4
13360 P13356  [GDCPC 2024] 图 0 / 0 6
13362 P13358  [GDCPC 2024] 小班课 0 / 0 6
13369 P13364  [GCJ 2011 Qualification] GoroSort 0 / 0 5
13373 P13368  [GCJ 2011 #1B] RPI 0 / 0 2
13374 P13369  [GCJ 2011 #1B] Revenge of the Hot Dogs 0 / 0 4
13375 P13370  [GCJ 2011 #1B] House of Kittens 0 / 0 6
13376 P13371  [GCJ 2011 #1C] Square Tiles 0 / 0 2
13379 P13374  [GCJ 2011 #2] Airport Walkways 0 / 0 3
13383 P13378  [GCJ 2011 #3] Irregular Cakes 0 / 0 4
13390 P13384  [GCJ 2011 Finals] Program within a Program 0 / 0 7
13392 P13386  [GCJ 2011 Finals] Google Royale 0 / 0 7
13409 P13402  [GCJ 2010 #2] Grazing Google Goats 0 / 0 6
13425 P13413  [COCI 2012/2013 #4] OREHNJACA 0 / 0 2
13430 P13418  [COCI 2012/2013 #4] AKVARIJ 0 / 0 4
13434 P13422  [COCI 2019/2020 #4] Pod starim krovovima 0 / 0 2
13439 P13427  [COCI 2020/2021 #2] Odasiljaci 0 / 0 3
13445 P13433  [GCJ 2009 #1A] Collecting Cards 0 / 0 5
13446 P13434  [GCJ 2009 #1B] Decision Tree 0 / 0 4
13450 P13438  [GCJ 2009 #1C] Center of Mass 0 / 0 4
13455 P13443  [GCJ 2009 #2] Watering Plants 0 / 0 5
13461 P13449  [GCJ 2009 Finals] Min Perimeter 0 / 0 6
13465 P13453  [GCJ 2009 Finals] Lights 0 / 0 7
13469 P13456  [GCJ 2008 Qualification] Fly Swatter 0 / 0 5
13480 P13467  [GCJ 2008 #2] Triangle Areas 0 / 0 4
13481 P13468  [GCJ 2008 #2] Star Wars 0 / 0 4
13489 P13476  [GCJ 2008 APAC SemiFinal] Millionaire 0 / 0 5
13493 P13480  [GCJ 2008 AMER SemiFinal] Test Passing Probability 0 / 0 5
13495 P13482  [GCJ 2008 EMEA SemiFinal] Scaled Triangle 0 / 0 5
13121 P13494  【MX-X14-T4】分门别类 0 / 0 5
13039 P13502  [OOI 2024] Draw Polygon Lines 0 / 0 7
13040 P13503  [OOI 2024] Evidence Board 0 / 0 5
13527 P13506  [OOI 2024] Parallel Universes 0 / 0 6
13522 P13524  [KOI 2025 #2] 跳跃 0 / 0 4
13531 P13527  [OOI 2023] Another n-dimensional chocolate bar / n 维巧克力问题 0 / 0 6
13537 P13533  [OOI 2023] 寻找假币 0 / 0 7
13550 P13535  [IOI 2025] Souvenirs 0 / 0 6
13552 P13537  [IOI 2025] World Map 0 / 0 7
13553 P13538  [IOI 2025] Festival 0 / 0 7
13554 P13539  [IOI 2025] Migrations 0 / 0 7
13557 P13542  [OOI 2022] Two avenues 0 / 0 7
13560 P13545  [OOI 2022] Plane stretching 0 / 0 7
13024 P13551  ももいろの鍵 0 / 0 3
13565 P13553  [IOI 2025] 神话三峰(triples)(Part 2) 0 / 0 7
12926 P13558  【MX-X15-T5】拼串串 0 / 0 5
12973 P13559  【MX-X15-T6】翻树树 0 / 0 5
13291 P13564  「CZOI-R5」奶龙 0 / 0 3
13583 P13570  [CCPC 2024 重庆站] 连方 0 / 0 4
13571 P13571  [CCPC 2024 重庆站] 有限小数 0 / 0 5
13586 P13583  [NWRRC 2023] Colorful Village 0 / 0 6
13587 P13584  [NWRRC 2023] Divisibility Trick 0 / 0 3
13588 P13585  [NWRRC 2023] Every Queen 0 / 0 3
13589 P13586  [NWRRC 2023] First Solved, Last Coded 0 / 0 5
13592 P13589  [NWRRC 2023] Intersegment Activation 0 / 0 5
13595 P13592  [NWRRC 2023] Loops 0 / 0 6
13046 P13596  『GTOI - 1C』Top Miner 0 / 0 5
13600 P13601  [NWRRC 2022] Dice Grid 0 / 0 (None)
13602 P13603  [NWRRC 2022] Focusing on Costs 0 / 0 (None)
13606 P13607  [NWRRC 2022] Joking? 0 / 0 (None)
13608 P13609  [NWRRC 2022] Limited Swaps 0 / 0 (None)
13611 P13612  [IOI 2018] combo 组合动作 0 / 0 5
13612 P13613  [IOI 2018] doll 机械娃娃 0 / 0 7
13613 P13614  [IOI 2018] highway 高速公路收费 0 / 0 7
13098 P13615  [ICPC 2024 APC] Antiparticle Antiphysics 0 / 0 7
13102 P13619  [ICPC 2024 APC] Duplicates【缺 SPJ】 0 / 0 5
13106 P13623  [ICPC 2024 APC] Symmetric Boundary 0 / 0 7

Categories

Lucky

Pick a problem randomly based on the current filter.