제출 #605602

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
605602		Itamar	Newspapers (CEOI21_newspapers)	C++14	0 / 100	0 ms	212 KiB

newspapers

#include <map>
#include <iostream>
#include <random>
using namespace std;
#include <vector>
#include <queue>
#include <set>
#include <algorithm>
#define ll long long
#define vi vector<int> 
#define vll vector<ll>
#define pi pair<int,int> 
#define pll pair<ll,ll>
#include <string>
#include <cassert>

int main()
{
    int n, m;
    cin >> n >> m;
    vector<vi> fr(n);
    for (int i = 0; i < m; i++) {
        int a, b;
        cin >> a >> b;
        a--, b--;
        fr[a].push_back(b);
        fr[b].push_back(a);
    }
    if (m == n - 1)
        cout << "YES";
    else
        cout << "NO";
}

• Subtask 1: 0 / 12
• Subtask 2: 0 / 8
• Subtask 3: 0 / 80