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7 problems

  • 1
ID Problem Show tags Hide tags AC / Tried Difficulty
4799 luoguP1020   [NOIP 1999 提高组] 导弹拦截 1 / 1 6
7698 luoguP3974   [TJOI2015] 组合数学 0 / 0 8
12669 luoguP8694   [蓝桥杯 2019 国 AC] 估计人数 0 / 0 6
15858 luoguP11335   [NOISG 2020 Finals] Arcade 0 / 0 7
16319 luoguP11665   [JOI 2025 Final] 只不过是长的领带 2 / Just Long Neckties 2 0 / 0 8
18280 luoguP13520   [KOI 2025 #2] 存放箱子 0 / 0 7
19059 luoguP14394   [JOISC 2016] 俄罗斯套娃 / Matryoshka 0 / 0 8
  • 1

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