141 problems

ID Problem Show tags Hide tags AC / Tried Difficulty
13006 P13698   「CyOI」追忆 0 / 0 9
13754 P13787   地毯 加强版 0 / 0 5
13841 P13879   [蓝桥杯 2023 省 Java A] 棋盘 0 / 0 5
13683 P13903   「KFCOI Round #2」卡常题 0 / 0 7
13729 P14028   【MX-X20-T2】「FAOI-R7」最小极差（jicha） 0 / 0 3
12917 P14174   【MX-X23-T4】卡常数 0 / 0 6
14145 P14233   [COI 2011] 收视率 / TELKA 0 / 0 5
14182 P14291   [ICPC 2025 WF] Walking on Sunshine 0 / 0 5
14274 P14408   [JOISC 2015] IOIOI 卡牌占卜 / IOIOI Cards 0 / 0 9
14304 P14521   【MX-S11-T2】加减乘除 0 / 0 6
14793 P14765   [ICPC 2024 Seoul R] Bottles 0 / 0 3
14595 P14961   「KWOI R1」XOR and Increasing 0 / 0 8
14653 P14965   [LBA-OI R2 D] 昔涟 0 / 0 8
14998 P14978   [USACO26JAN1] Mooclear Reactor S 0 / 0 7
14561 P14988   多边形 0 / 0 5
15145 P15101   [ICPC 2025 LAC] Game of Pieces 0 / 0 6
15517 P15540   [CCC 2026 J5/S2] Beams of Light 0 / 0 3
15403 P15576   [USACO26FEB] Good Cyclic Shifts G 0 / 0 7
15611 P15687   [ICPC 2023 Jakarta R] Maximize The Value 0 / 0 7
15675 P15743   [JAG 2024 Summer Camp #3] Tower Defense 0 / 0 3
15874 P15816   [JOI 2015 Final] 鉄道旅行 0 / 0 5
16283 P16250   [蓝桥杯 2026 省研究生组] 人类识别审查 0 / 0 3
15773 P16327   线段 0 / 0 6
16345 P16395   [ECUSTPC 2026 Spring] 星之所在 0 / 0 9
16476 P16491   [GKS 2014 #D] GBus count 0 / 0 3
15823 P16525   一如陌上尘 0 / 0 9
16555 P16582   [GKS 2016 #B] Watson and Intervals 0 / 0 6
16565 P16592   [GKS 2016 #E] Diwali lightings 0 / 0 3
16931 P16657   [GKS 2018 #G] Combining Classes 0 / 0 6
16617 P16663   [CSPro 25] 出行计划 0 / 0 3
16673 P16684   圆圈 0 / 0 5
16650 P16689   出征 0 / 0 7
16945 P16699   [MCO 2026] 知道得越少越好 0 / 0 5
16971 P16723   [GKS 2019 #A] Training 0 / 0 5
17094 P16850   [GKS 2021 #D] Cutting Intervals 0 / 0 5
17348 P17145   [NOI 2026] 彩虹树 0 / 0 (None)
16627 P17178   Code Code Patch Crash 0 / 0 5
16764 P17182   [ICPC 2017 Hong Kong R] Black and White 0 / 0 6
17185 P17294   [ICPC 2026 Xi'an I] North and South 0 / 0 6
17342 P17317   [KismetOI 2026 I] 作弊 0 / 0 (None)
16830 P17424   [ICPC 2018 Xuzhou R] Rikka with Intersections of Paths 0 / 0 6

Categories

Lucky

Pick a problem randomly based on the current filter.

  1. Language
  2. Legacy mode
  3. Theme
  2. 粤ICP备2021104657号
  3. Worker 0, 51ms
  4. Powered by Hydro v5.0.0-beta.18 Community