Balanced Lineup Time Limit: 5000MS Memory Limit: 65536KB 64bit IO Format: %I64d & %I64u Submit Status Description For the daily milking, Farmer John’s N cows (1 ≤ N ≤ 50,000) always line up in the
Balanced Lineup Time Limit: 5000MS Memory Limit: 65536KTotal Submissions: 33665 Accepted: 15830Case Time Limit: 2000MS Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000)
【题目来源】https://www.luogu.com.cn/problem/P3379【题目描述】 如题,给定一棵有根多叉树,请求出指定两个点直接最近的公共祖先。【输入格式】 第一行包含三个正整数 N,M,S,分别表示树的结点个数、询问的个数和树根结点的序号。 接下来 N−1 行每行包含两个正整数 x,y,表示 x 结点和 y 结点之间有一条直接连接的边(数据保证可以构成树)。 接下来 M 行每
D. R2D2 and Droid Army time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output An army of n droids is lined up in one row. Each