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2019 杭电多校 8 1009 题目链接: "HDU 6665" 比赛链接: "2019 Multi University Training Contest 8" Problem Description Calabash is the servant of a landlord. The land 阅读全文
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2019 杭电多校 8 1011 题目链接: "HDU 6667" 比赛链接: "2019 Multi University Training Contest 8" Problem Description Roundgod is a famous milk tea lover at Nanjing 阅读全文
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题目链接: "POJ 1753" Problem Description Flip game is played on a rectangular 4x4 field with two sided pieces placed on each of its 16 squares. One side o 阅读全文
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题目链接: "POJ 2251" Description You are trapped in a 3D dungeon and need to find the quickest way out! The dungeon is composed of unit cubes which may or 阅读全文
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题目链接: "HDU 2553" Problem Description 在 $N N$ 的方格棋盘放置了 $N$ 个皇后,使得它们不相互攻击(即任意 $2$ 个皇后不允许处在同一排,同一列,也不允许处在与棋盘边框成 $45$ 角的斜线上。 你的任务是,对于给定的 $N$,求出有多少种合法的放置方法 阅读全文
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2019 杭电多校 5 1005 题目链接: "HDU 6628" 比赛链接: "2019 Multi University Training Contest 5" Problem Description A sequence of length $n$ is called a permutatio 阅读全文
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2019 杭电多校 7 1011 题目链接: "HDU 6656" 比赛链接: "2019 Multi University Training Contest 7" Problem Description Cuber QQ always envies those Kejin players, who 阅读全文