题目描述 奶牛们建立了电话网络,这个网络可看作为是一棵无根树连接n(1 n 100,000)个节点,节点编号为1 .. n.每个节点可能是(电话交换机,或者电话机).每条电话线连接两个节点.第i条电话线连接两个节点Ai和Bi(1 Ai,Bi n; Ai Bi). 叶子节点只连接一条电话线,这些叶子节点是位于电话网中的一个电话亭.两头奶牛需要通话,信号是沿着电话网络中连接两个顶点之间最短的路径传递.每部交换机最多可容纳K (1 K 10)对牛同时通话,对于输入的无根树,求出在任何一个时间最多可同时…
NC24840 [USACO 2009 Mar S]Look Up 题目 题目描述 Farmer John's N (1 <= N <= 100,000) cows, conveniently numbered 1..N, are once again standing in a row. Cow i has height Hi (1 <= Hi <= 1,000,000). Each cow is looking to her left toward those with hig…
NC25025 [USACO 2007 Nov G]Sunscreen 题目 题目描述 To avoid unsightly burns while tanning, each of the \(C\) (\(1 ≤ C ≤ 2500\)) cows must cover her hide with sunscreen when they're at the beach. Cow \(i\) has a minimum and maximum \(SPF\) rating (\(1 ≤ minS…
NC24325 [USACO 2012 Mar S]Flowerpot 题目 题目描述 Farmer John has been having trouble making his plants grow, and needs your help to water them properly. You are given the locations of N raindrops (1 <= N <= 100,000) in the 2D plane, where y represents ve…
NC24724 [USACO 2010 Feb S]Chocolate Eating 题目 题目描述 Bessie has received \(N (1 <= N <= 50,000)\) chocolates from the bulls, but doesn't want to eat them too quickly, so she wants to plan out her chocolate eating schedule for the next \(D (1 <= D &…
题目 链接:https://ac.nowcoder.com/acm/contest/28537/N 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++ 32768K,其他语言65536K 64bit IO Format: %lld 题目描述 Farmer John's N (1 <= N <= 100,000) cows, conveniently numbered 1-N, are once again standing in a row. Cow i has he…
