ID Problem Show tags Hide tags AC / Tried Difficulty
12371 P12561   [UTS 2024] Matrix 0 / 0 7
12658 P12882   [蓝桥杯 2025 国 C] 数列染色 0 / 0 6
13398 P13391   [GCJ 2010 #1A] Make it Smooth 0 / 0 6
13428 P13416   [COCI 2012/2013 #4] RAZLIKA 0 / 0 5
13852 P13889   [蓝桥杯 2023 省 Python A] 子矩阵 0 / 0 6
13901 P13933   [蓝桥杯 2022 省 Java B] 最大子矩阵 0 / 0 6
13985 P14036   [PAIO 2025] Rooks 0 / 0 6
14356 P14555   [ROI 2013 Day1] 古老王朝 0 / 0 8
14775 P14735   [ICPC 2021 Seoul R] Double Rainbow 0 / 0 5
14562 P14989   传送 0 / 0 6
15141 P15097   [ICPC 2025 LAC] Coatless in Yakutsk 0 / 0 3
16312 P16289   [蓝桥杯 2026 省 Python A 组] 购电优化 0 / 0 7
16326 P16378   [NordicOI 2026] Alarms 0 / 0 5
16490 P16513   [GKS 2015 #C] gMatrix 0 / 0 6
16564 P16591   [GKS 2016 #D] Stretch Rope 0 / 0 7

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