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Problem Description “Ladies and Gentlemen, It’s show time! ” “A thief is a creative artist who takes his prey in style... But... 阅读全文
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unique() 位于 头文件中，其作用是元素去重，即删除序列中所有相邻的重复元素。 其删除元素，只是一个伪去除，只是重新排列了序列中的元素，将相邻的重复元素添加到容器末尾，简单来说，使用 unique() 后，容器的长度没有变，只是元素顺序改变了。 其返回... 阅读全文
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Problem Description In a 2D plane N persons are standing and each of them has a gun in his hand. The plane is so big that the p... 阅读全文
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Problem Description John has several lines. The lines are covered on the X axis. Let A is a point which is covered by the most ... 阅读全文
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Problem Description Peter has a string s=s1s2...sn, let suffi=sisi+1...sn...sn be the suffix start with ii-th character of ss. ... 阅读全文
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Problem Description The problem you need to solve here is pretty simple. You are give a function f(A, n), where A is an array o... 阅读全文
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Problem Description During the Warring States Period of ancient China(476 BC to 221 BC), there were seven kingdoms in China ---... 阅读全文
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Problem Description John is a manager of a CPU chip factory, the factory produces lots of chips everyday. To manage large amoun... 阅读全文
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Problem Description Dear contestant, now you are an excellent navy commander, who is responsible of a tough mission currently. ... 阅读全文
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上午补了补题，看了一会树状数组。 下午比赛的题基本是前三天的重现赛，除了之前的题基本都做出来以外，别的题就写出来一道 GCD 的逆推题，晚上补题比较轻松。 这几天总的来说还是感到跟别人的差距了，图论的内容虽然之前看的差不多了，但不一定能做出来，别人虽然没有看完... 阅读全文