147 problems

ID Problem Show tags Hide tags AC / Tried Difficulty
12418 P12621  [NAC 2025] Circle of Leaf 0 / 0 5
12436 P12639  [UOI 2020] Topological Sorting of a Tree 0 / 0 6
12450 P12650  [KOI 2024 Round 2] 双 v 字形涂色 0 / 0 5
12459 P12658  [KOI 2023 Round 1] 格子游戏 0 / 0 3
11455 P12674  「LAOI-8」Count 0 / 0 3
12115 P12678  Brooklyn Round 1 & NNOI Round 1 B - Gift 0 / 0 4
12477 P12687  [KOI 2022 Round 1] 鹅卵石 0 / 0 3
11521 P12717  [Algo Beat Contest 002 D] Distance of Trip 0 / 0 3
11526 P12719  [Algo Beat Contest 002 F] Famous Basketball Games 0 / 0 5
12509 P12730  [KOI 2021 Round 2] 美食推荐 0 / 0 6
12521 P12747  [POI 2016 R3] 庆典巡游 Parade 0 / 0 4
12539 P12761  [POI 2018 R2] 列车员 Conductor 0 / 0 6
12599 P12819  [NERC 2021] Fancy Stack 0 / 0 5
12606 P12830  [蓝桥杯 2025 国 B] 新型锁 0 / 0 3
12609 P12833  [蓝桥杯 2025 国 B] 斐波那契字符串 0 / 0 3
12656 P12880  [蓝桥杯 2025 国 C] 数字配对 0 / 0 4
12658 P12882  [蓝桥杯 2025 国 C] 数列染色 0 / 0 4
12665 P12889  [蓝桥杯 2025 国 Java B] 情绪链路 0 / 0 2
12667 P12891  [蓝桥杯 2025 国 Java B] 瓷砖填充 0 / 0 3
12682 P12895  [POI 2019/2020 R2] 假期 Wakacje Bajtazara 0 / 0 4
12674 P12903  [NERC 2020] Digits 0 / 0 5
12688 P12912  [POI 2020/2021 R2] 收拾背包 / Pakowanie plecaka 0 / 0 6
11234 P12930  [USACO4.3] 逢低吸纳 Buy Low, Buy Lower 加强版 0 / 0 5
12752 P12950  [GCJ Farewell Round #1] Untie 0 / 0 3
12766 P12964  [GCJ Farewell Round #4] Old Gold 0 / 0 6
12768 P12966  [CCO 2025] Asteroid Mining 0 / 0 5
12783 P12986  [GCJ 2022 #1A] Weightlifting 0 / 0 5
12787 P12988  [GCJ 2022 #1B] Controlled Inflation 0 / 0 4
12795 P12996  [GCJ 2022 #2] I, O Bot 0 / 0 6
12803 P13004  [GCJ 2022 Finals] Schrödinger and Pavlov 0 / 0 6
12719 P13008  【MX-X13-T3】「KDOI-12」只有失去光明，才能逃脱黑暗。 0 / 0 4
12720 P13009  【MX-X13-T4】「KDOI-12」好胜是人的本能，功利是社会的本性。 0 / 0 4
12728 P13011  【MX-X13-T6】「KDOI-12」能做到的也只不过是静等缘分耗尽的那一天。 0 / 0 6
12830 P13015  [GESP202506 六级] 学习小组 0 / 0 2
12833 P13018  [GESP202506 七级] 调味平衡 0 / 0 3
12807 P13022  [GCJ 2021 Qualification] Moons and Umbrellas 0 / 0 3
12817 P13028  [GCJ 2021 #1A] Hacked Exam 0 / 0 6
12820 P13031  [GCJ 2021 #1B] Digit Blocks 0 / 0 5
12837 P13036  [GCJ 2021 #2] Matrygons 0 / 0 4
12838 P13037  [GCJ 2021 #2] Hidden Pancakes 0 / 0 5
12843 P13042  [GCJ 2021 #3] Binary Search Game 0 / 0 7
12847 P13046  [GCJ 2021 Finals] Divisible Divisions 0 / 0 6
12871 P13066  [GCJ 2020 #3] Naming Compromise 0 / 0 4
12872 P13067  [GCJ 2020 #3] Thermometers 0 / 0 6
12885 P13085  [SCOI2009] windy 数（加强版） 0 / 0 5
12902 P13118  [GCJ 2019 #2] Contransmutation 0 / 0 5
12912 P13128  [GCJ 2019 Finals] Go To Considered Helpful 0 / 0 6

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