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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