Submission

Status:

Compilation Error

Score: 0

User: qwerty

Problemset: เก็บกราฟเบื้องต้น

Language: cpp

Time: 0.000 second

Submitted On: 2025-03-14 20:41:55

#include<bits/stdc++.h>
using namespace std;

int main() {
    int n, e;
    cin >> n >> e;
    vector<vector<int>> edges(e);
    for (int i = 0 ; i < e ; i++) {
        int u, v;
        cin >> u >> v;
        edges[u].push_back(v);
        edges[v].push_back(u);
    }
    for (auto i : edges) {
        if (i.empty()) cout << -1;
        else {
            for (auto j : i) {
                cout << j << " ";
            }
        }
        cout << endl;
    }
}