PTA甲级1094 The Largest Generation (25分) 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 Specificatio…

题意: 输入两个正整数N和M(N<100,M<N),表示结点数量和有孩子结点的结点数量,输出拥有结点最多的层的结点数量和层号(根节点为01,层数为1,层号向下递增). AAAAAccepted code: #define HAVE_STRUCT_TIMESPEC #include<bits/stdc++.h> using namespace std; vector<]; ]; void dfs(int x,int storey){ ++ans[storey]; for(aut…

http://www.patest.cn/contests/pat-a-practise/1094 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 S…

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…

题目很简单,就是统计一下每层的节点数,输出节点数最多的个数和对应的层数即可. #include <iostream> #include <cstdio> #include <algorithm> #include <string.h> using namespace std; ; int num[maxn]; int head[maxn]; int tot; struct Edge{ int to; int next; }edge[maxn]; void i…

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 ca…

简单DFS. #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> #include<map> #include<queue> #include<stack> #include<vector> using namespace std; ; int n,m; vector<int>g[maxn]; int ans[…

题目如下: #include<iostream> #include<vector> #include<algorithm> using namespace std; int book[100]; vector<int> vi[100]; void dfs(int index, int level){ book[level]++;//第一层肯定是有的,即根节点 for(int i = 0; i < vi[index].size(); i++){ dfs(…

本文同步发布在CSDN:https://blog.csdn.net/weixin_44385565/article/details/93311728 1094 The Largest Generation (25 分)   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…

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…

1094 The Largest Generation(25 分) 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: Ea…

1094 The Largest Generation 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 inp…

The "Hamilton cycle problem" is to find a simple cycle that contains every vertex in a graph. Such a cycle is called a "Hamiltonian cycle". In this problem, you are supposed to tell if a given cycle is a Hamiltonian cycle. Input Specif…

题目 A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes with keys less than the node's key. The right subtree of a node contains only nodes with keys gre…

求结点最多的一层 输出该层的结点个数以及层号 #include<bits/stdc++.h> using namespace std; vector<]; map<int,int>mp; void dfs(int v,int step) { mp[step]++; ){ return; } ;i<vec[v].size();i++){ dfs(vec[v][i],step+); } } int main() { int n,m; scanf("%d %d&qu…

https://pintia.cn/problem-sets/994805342720868352/problems/994805372601090048 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…

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 ca…

A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes with keys less than the node's key. The right subtree of a node contains only nodes with keys greate…

题意:略. 思路:层序遍历:在结点中增加一个数据域表示结点所在的层次. 代码: #include <cstdio> #include <queue> #include <vector> using namespace std; struct Node{ int layer; vector<int> child; }; vector<Node> tree(); ]={}; ,maxNum=; void levelOrderTraversal(int…

#include<bits/stdc++.h>using namespace std;int n,m,l,t;int a[1307][137][67];int vis[1307][137][67];typedef struct{    int x,y,z;}node;int xx[6]={0,0,0,0,1,-1};int yy[6]={0,0,1,-1,0,0};int zz[6]={1,-1,0,0,0,0};node p;int bfs(int x,int y,int z){    qu…

CODE: #include<cstdio> #include<cstring> #include<queue> using namespace std; bool mat[105][105]; bool root[105]; int n,m; int R; int cnt[105]; int ans1,ans2; struct TNode { int num; int level; }; void BFS() { queue<TNode> Q; TNode…

"Damn Single (单身狗)" is the Chinese nickname for someone who is being single. You are supposed to find those who are alone in a big party, so they can be taken care of. Input Specification: Each input file contains one test case. For each case, t…

A vertex cover of a graph is a set of vertices such that each edge of the graph is incident to at least one vertex of the set. Now given a graph with several vertex sets, you are supposed to tell if each of them is a vertex cover or not. Input Specif…

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 of…

题意: 输入一个正整数N(<=10),接着输入0~N-1每个结点的左右儿子结点,输出这颗二叉树的反转的层次遍历和中序遍历. AAAAAccepted code: #define HAVE_STRUCT_TIMESPEC #include<bits/stdc++.h> using namespace std; ][]; ]; void bfs(int r){ queue<int>q; q.push(r); cout<<r; while(!q.empty()){ in…

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…

Source: PAT A1094 The Largest Generation (25 分) Description: 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 populati…

题目链接:https://pintia.cn/problem-sets/994805046380707840/problems/994805069361299456 L2-006 树的遍历 (25 分)   给定一棵二叉树的后序遍历和中序遍历,请你输出其层序遍历的序列.这里假设键值都是互不相等的正整数. 输入格式: 输入第一行给出一个正整数N(≤30),是二叉树中结点的个数.第二行给出其后序遍历序列.第三行给出其中序遍历序列.数字间以空格分隔. 输出格式: 在一行中输出该树的层序遍历的序列.数字…

题目地址 https://pta.patest.cn/pta/test/15/exam/4/question/711 5-3 树的同构   (25分) 给定两棵树T1和T2.如果T1可以通过若干次左右孩子互换就变成T2,则我们称两棵树是“同构”的.例如图1给出的两棵树就是同构的,因为我们把其中一棵树的结点A.B.G的左右孩子互换后,就得到另外一棵树.而图2就不是同构的. 图1 图2 现给定两棵树,请你判断它们是否是同构的. 输入格式: 输入给出2棵二叉树树的信息.对于每棵树,首先在一行中给出一个…

1021 Deepest Root (25 分)   A graph which is connected and acyclic can be considered a tree. The height of the tree depends on the selected root. Now you are supposed to find the root that results in a highest tree. Such a root is called the deepest r…