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XKC's basketball team XKC , the captain of the basketball team , is directing a train of nn team members. He makes all members stand in a row , and nu 阅读全文
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A.Laptop 链接：https://ac.nowcoder.com/acm/contest/16/A来源：牛客网 时间限制：C/C++ 1秒，其他语言2秒 空间限制：C/C++ 131072K，其他语言262144K 64bit IO Format: %lld 时间限制：C/C++ 1秒，其他语 阅读全文
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P3806 【模板】点分治1 题目背景 感谢hzwer的点分治互测。 感谢hzwer的点分治互测。 题目描述 给定一棵有n个点的树 询问树上距离为k的点对是否存在。 给定一棵有n个点的树 询问树上距离为k的点对是否存在。 输入格式 n,m 接下来n-1条边a,b,c描述a到b有一条长度为c的路径 接 阅读全文
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Travel There are nn planets in the MOT galaxy, and each planet has a unique number from 1 \sim n1∼n. Each planet is connected to other planets through 阅读全文
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Swap There is a sequence of numbers of length nn, and each number in the sequence is different. There are two operations: Swap the first half and the 阅读全文
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Tree Ming and Hong are playing a simple game called nim game. They have nn piles of stones numbered 11 to nn ,the ii-th pile of stones has a_iai ston 阅读全文
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Angel's Journey “Miyane!” This day Hana asks Miyako for help again. Hana plays the part of angel on the stage show of the cultural festival, and she i 阅读全文
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Tasks It's too late now, but you still have too much work to do. There are nn tasks on your list. The ii-th task costs you t_itiseconds. You want to 阅读全文
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POJ 1741. Tree Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 34141 Accepted: 11420 Description Give a tree with n vertices,each edge has 阅读全文
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好久没写过博客了，这学期不是很有热情去写博客，写过的题也懒得写题解。现在来水一水博客，写一下若干年前的题目的题解。 Atlantis Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Tot 阅读全文