如果看不懂辅助解释在后面第点 1.录入方式: 输入 u - v 表示一边的2个端点 2.存储结构 struct edge { int from; int to; int next; } e[MAXN]; int head[MAXN]; //head[u]表示 以u为父节点的边链表的头 3.建图方法 void build(int u, int v) { e[cnt].from = u; e[cnt].to = v; e[cnt].next = head[u];// next = 之前u为父节点的
#include<stdio.h> #include<string.h> #include<stdlib.h> #include<queue> #include<stack> #include<algorithm> #define MAX 1000 using namespace std; int head[MAX],ans; int vis[MAX],viss[MAX]; int map[MAX],ant; queue<int
题目 It is vitally important to have all the cities connected by highways in a war. If a city is occupied by the enemy, all the highways from/toward that city are closed. We must know immediately if we need to repair any other highways to keep the rest
题目 A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The lef subtree of a node contains only nodes with keys less than or equal to the node's key. The right subtree of a node contains only nodes wi
题目 A family hierarchy is usually presented by a pedigree tree where all the nodes on the same level belong to the same generation. Your task is to find the generation with the largest population. Input Specification: Each input file contains one test
题目 A supply chain is a network of retailers(零售商), distributors(经销商), and suppliers(供应商)– everyone involved in moving a product from supplier to customer. Starting from one root supplier, everyone on the chain buys products from one's supplier in a pr
题目 A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child. Input Each input file contains one test case. Each case starts with a line containing 0 < N < 100, the number of nodes in a t
