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题目描述 Once there was a pig, which was very fond of treasure hunting. One day, when it woke up, it found itself in a strange land of treasure. As for ho 阅读全文
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题目描述 Given an array A with length n a[1],a[2],...,a[n] where a[i] (1<=i<=n) is positive integer. Count the number of pair (l,r) such that a[l],a[l+1], 阅读全文
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题目描述 Small koala special love LiaoHan (of course is very handsome boys), one day she saw N (N<1e18) guys standing in a row, because the boys had some 阅读全文