oj.uz

답안 #921320

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
921320 2024-02-03T17:11:02 Z JoksimKaktus Wand (COCI19_wand) C++17
70 / 70
 23 ms 5468 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;
void output(bool yes){yes ? cout << "Yes" << "\n" : cout << "No" << "\n";}

vector <int> adj[100005];
vector <int> res(100005);
vector <int> vis(100005);

void find(int i){
    vis[i]=true;
    for(int j : adj[i]){
        res[j]=1;
        if(vis[j])continue;
        find(j);
    }
    vis[i]=false;
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(0);
    int n,m;
    cin >> n >> m;
    for(int i = 0;i < m;i++){
        int u,v;
        cin >> u >> v;
        u--;
        v--;
        adj[v].push_back(u);
    }
    find(0);
    if(adj[0].size() == 0)res[0]=1;
    for(int i = 0;i < n;i++){
        cout << res[i];
    }
}

Subtask #1
70.0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 3416 KB Output is correct
2 Correct 2 ms 3420 KB Output is correct
3 Correct 19 ms 5380 KB Output is correct
4 Correct 19 ms 5204 KB Output is correct
5 Correct 19 ms 5400 KB Output is correct
6 Correct 20 ms 5360 KB Output is correct
7 Correct 23 ms 5208 KB Output is correct
8 Correct 19 ms 5468 KB Output is correct
9 Correct 20 ms 5464 KB Output is correct
10 Correct 20 ms 5464 KB Output is correct