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英文DescriptionGiven is an ordered deck of n cards numbered 1 to n with card 1 at the top and card n at the bottom. The following o... 阅读全文
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英文DescriptionTrung is bored with his mathematics homeworks. He takes a piece of chalk and starts writing a sequence of consecutiv... 阅读全文
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说明：学习该模板比较推荐洛谷P3367 【模板】并查集，以下是该题链接及描述： https://www.luogu.org/problemnew/show/P3367题目描述如题，现在有一个并查集，你需要完成合并和查询操作。输入格式：第一行包含两个整数N、M... 阅读全文