Submission

Score: 0

User: chs_14

Problemset: เก็บกราฟเบื้องต้น

Language: cpp

Time: 0.000 second

Submitted On: 2026-08-03 20:41:14

#include <iostream>
#include <utility>
#include <vector>
using namespace std;

vector<vector<int>> createGraph(int N, vector<pair<int, int>> E) {
    vector<vector<int>> arr(N);
    for (auto p : E) {
        arr[p.first].push_back(p.second);
        arr[p.second].push_back(p.first);
    }
    return arr;
}

int main() {
    cin.tie(0)->sync_with_stdio(false);
    int N, E;

    cin >> N >> E;
    vector<pair<int, int>> Ea(E);
    for (int i=0; i<E; i++) {
        cin >> Ea[i].first >> Ea[i].second;
    }
    vector<vector<int>> fuck = createGraph(N, Ea);
    for (vector<int> i : fuck) {
        for (int j : i) {
            cout << j << ' ';
        }
        cout << '\n';
    }
    return 0;
}