PAT (Advanced Level) Practise 1094 The Largest Generation (25)
2016-03-25 19:23
369 查看
1094. The Largest Generation (25)
时间限制200 ms
内存限制
65536 kB
代码长度限制
16000 B
判题程序
Standard
作者
CHEN, Yue
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 case. Each case starts with two positive integers N (<100) which is the total number of family members in the tree (and hence assume that all the members are numbered from 01 to N), and M (<N) which is the number of family
members who have children. Then M lines follow, each contains the information of a family member in the following format:
ID K ID[1] ID[2] ... ID[K]
where ID is a two-digit number representing a family member, K (>0) is the number of his/her children, followed by a sequence of two-digit ID's of his/her children. For the sake of simplicity, let us fix the root ID to be 01. All the numbers in a line are separated
by a space.
Output Specification:
For each test case, print in one line the largest population number and the level of the corresponding generation. It is assumed that such a generation is unique, and the root level is defined to be 1.
Sample Input:
23 13 21 1 23 01 4 03 02 04 05 03 3 06 07 08 06 2 12 13 13 1 21 08 2 15 16 02 2 09 10 11 2 19 20 17 1 22 05 1 11 07 1 14 09 1 17 10 1 18
Sample Output:
9 4
算一下树的哪一层节点最多,直接dfs统计即可。
#include<cstdio> #include<vector> #include<cstring> #include<algorithm> using namespace std; typedef long long LL; const int mod = 1e9 + 7; const int maxn = 1e5 + 10; vector<int> t[maxn]; int n, m, x, y, z, cnt[maxn]; void dfs(int x, int dep) { cnt[dep]++; for (int i = 0; i < t[x].size(); i++) { dfs(t[x][i], dep + 1); } } int main() { scanf("%d%d", &n, &m); while (m--) { scanf("%d%d", &x, &y); while (y--) scanf("%d", &z), t[x].push_back(z); } dfs(1, 1); int now = 1; for (int i = 1; i <= n; i++) { if (cnt[i] > cnt[now]) now = i; } printf("%d %d\n", cnt[now], now); return 0; }
相关文章推荐
- libdvbpsi源码分析(四)PAT表解析/重建
- PAT配置
- 什么是端口复用动态地址转换(PAT) 介绍配置实例
- MikroTik layer7-protocol
- PAT是如何工作的
- PAT 乙级题:1002. 写出这个数 (20)
- PAT (Advanced Level) Practise 1001-1010
- 数据结构学习与实验指导(一)
- PAT Basic Level 1001-1010解题报告
- 1001. 害死人不偿命的(3n+1)猜想
- 1002. 写出这个数
- 1032. 挖掘机技术哪家强
- 1001. 害死人不偿命的(3n+1)猜想 (PAT basic)
- 1002. 写出这个数(PAT Basic)
- 1004. 成绩排名(PAT Basic)
- 1006. 换个格式输出整数(PAT Basic)
- 1007. 素数对猜想(PAT Basic)
- 1008. 数组元素循环右移问题
- 1009. 说反话(PAT Basic)
- 1011. A+B和C(PAT Basic)