#include <iostream>
using namespace std;
typedef struct {
int level;//节点所在层次
int flag;//0没有孩子,1有孩子
int father;//父节点
}Node;
int main()
{
Node node[205];
int n, m;//n个节点,m个非叶子节点
int nowNode, nowNodeNumber, childNode;
int result[205] = { 0 };
int maxLevel = 1;
cin >> n >> m;
//初始化
for (int i = 0;i <= n; i++) {
node[i].level = 0;
node[i].flag = 0;
node[i].father = 0;
}
//编号为1的根节点层号为1
node[1].level = 1;
//输入并保存关系
while (m--) {
cin >> nowNode;//节点编号
cin >> nowNodeNumber;//孩子数
//标记该节点有孩子
if (nowNodeNumber > 0) {
node[nowNode].flag = 1;
}
for (int j = 0;j < nowNodeNumber;j++) {
cin >> childNode;
//保存自己的父亲节点
node[childNode].father = nowNode;
}
}
for (int i = 1;i <= n;i++) {
for (int j = 0;j <= n;j++) {
if (node[j].father == i) {
node[j].level = node[i].level + 1;
}
}
}
for (int i = 1;i <= n;i++) {
if (node[i].flag == 0) {//叶节点
result[node[i].level]++;
}
//记录下最大的层号
if (node[i].level > maxLevel) {
maxLevel = node[i].level;
}
}
for (int i = 1;i < maxLevel;i++) {
cout << result[i] << " ";
}
cout << result[maxLevel];
return 0;
}
参考博客:http://www.cnblogs.com/linkstar/p/5674895.html