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D. String GameLittle Nastya has a hobby, she likes to remove some letters from word, to obtain another word. But it turns out to be pretty hard for he 阅读全文
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题目:给你n个数,每个数为ai,现在有m个询问,每个询问l,r,需要求出:代表ai在这个区间中出现的次数。 题目链接:https://ac.nowcoder.com/acm/contest/1085/G 输入: 输出: 参考博客:1.https://www.cnblogs.com/MisakaA 阅读全文
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D. Colorful PointsYou are given a set of points on a straight line. Each point has a color assigned to it. For point a, its neighbors are the points w 阅读全文