Cloesest Common Ancestors 题目大意:给出一个n个节点的树,m组询问求两点LCA. 注释:n<=900. 想法:这题一看,我去,这不傻题吗?一看读入方式,完了,懵逼了... ...这题是考读入啊一大堆乱七八糟的东西,真正有用的只有里面的数... ...然后,我学了两个比较有用的东西. 1.scanf("%*d");其中,*表示读完就删,所以可以用来处理本题. 2.强大的nc+read(),在此不做介绍. 总之,初学LCA,这是另一道朴素的LCA,用桶记录即…

传送门 Nearest Common Ancestors Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 26612   Accepted: 13734 Description A rooted tree is a well-known data structure in computer science and engineering. An example is shown below:    In the figur…

Nearest Common Ancestors Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 27316   Accepted: 14052 Description A rooted tree is a well-known data structure in computer science and engineering. An example is shown below:  In the figure, eac…

Nearest Common Ancestors Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 14698   Accepted: 7839 Description A rooted tree is a well-known data structure in computer science and engineering. An example is shown below:  In the figure, each…

  Nearest Common Ancestors Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 24587   Accepted: 12779 Description A rooted tree is a well-known data structure in computer science and engineering. An example is shown below:  In the figure, e…

传送门 Closest Common Ancestors Time Limit: 2000MS   Memory Limit: 10000K Total Submissions: 17306   Accepted: 5549 Description Write a program that takes as input a rooted tree and a list of pairs of vertices. For each pair (u,v) the program determines…

Closest Common Ancestors Time Limit: 2000MS   Memory Limit: 10000K Total Submissions: 15446   Accepted: 4944 Description Write a program that takes as input a rooted tree and a list of pairs of vertices. For each pair (u,v) the program determines the…

题目链接:http://poj.org/problem?id=1330 A rooted tree is a well-known data structure in computer science and engineering. An example is shown below: In the figure, each node is labeled with an integer from {1, 2,...,16}. Node 8 is the root of the tree. N…

题目:Nearest Common Ancestors 根据输入建立树,然后求2个结点的最近共同祖先. 注意几点: (1)记录每个结点的父亲,比较层级时要用: (2)记录层级: (3)记录每个结点的孩子,vector<int> v[M]写在主函数里面,放在外面超时. 代码: #include<iostream> #include<vector> #include<cstdio> #include<cstdlib> #include<cstr…

Description A rooted tree is a well-known data structure in computer science and engineering. An example is shown below: In the figure, each node is labeled with an integer from {1, 2,...,16}. Node 8 is the root of the tree. Node x is an ancestor of…