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Description zzsyz实验楼里面种了一棵滑稽树，只有滑稽之力达到大乘期的oier才能看到。虽然我们看不到，但是还是知道一些信息： 这真的是一棵树，由n个节点，n-1条边联通。一号滑稽果同时也是整棵滑稽树的树根。滑稽树上每个节点有一个滑稽果，每个滑稽果有它的重量。 雪甜甜公主是神犇当然看得 阅读全文
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Problem Description There are N boys in CodeLand.Boy i has his coding skill Ai.CRB wants to know who has the suitable coding skill.So you should treat 阅读全文
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Description You are working for Macrohard company in data structures department. After failing your previous task about key insertion you were asked t 阅读全文