^ 比赛时间 ^ 比赛名称 ^ 当场过题数 ^ 至今过题数 ^ 总题数 ^ 排名 ^
|2020-07-18| [[牛客多校第三场]] |  3  |  7  |  12  |917/1175|



==== 地址:https://ac.nowcoder.com/acm/contest/5668 ====

====== A Clam and Fish ======

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====== B Classical String Problem ======

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====== C Operation Love ======

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给出20个点，这20个点构成了一只手，通过给定的信息判断这只手是左手还是右手

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这个题很新颖，导致很多之前做题的思路都用不上，开始做题时就死磕，想面积，边长…… 都没想到点上 反而浪费了挺多时间，我觉着这个题重再观察，并且读懂题意，我读题是忘记了手掌面积不变，直接导致了队友懵逼了半小时，这个题的具体解决思路也很简单，大拇指外侧的线长6，手掌底部的线长9，小拇指外侧的线长8。判断连续的三根或者两根线是否满足这个规律就行了，由于是浮点数，这题需要控制精度。$eps = 1e-5是可以的$

====== D Points Construction Problem ======

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====== E Two Matchings ======

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====== F Fraction Construction Problem ======

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====== G Operating on a Graph ======

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====== H Sort the Strings Revision ======

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====== I Sorting the Array ======

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====== J Operating on the Tree ======

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====== K Eleven Game ======

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====== L Problem L is the Only Lovely Problem ======

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