Submission #36660095

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Source Code Expand

#include <bits/stdc++.h>
#define M_PI 3.14159265358979323846
typedef  long long ll;
const int INF = 1e9;
const int MOD = 1e9 + 7;
const ll LINF = 1e18;
using namespace std;

int main() {
    int N,M;
    cin >> N >> M;
    vector<vector<int>> graph(N+1);
    for (int i = 0; i < M; i++) {
        int a, b;
        cin >> a >> b;
        graph[a].push_back(b);
        graph[b].push_back(a);
    }
    for (int i = 0; i < N + 1; i++) {
        sort(graph[i].begin(), graph[i].end());

    }
    for (int i = 1; i <= N; i++) {
        cout << graph[i].size() ;
        for (int j = 0; j < graph[i].size(); j++) {
           cout<<" " << graph[i][j] ;
        }
        cout << endl;
    }

        return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:25:27: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<int>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   25 |         for (int j = 0; j < graph[i].size(); j++) {
      |                         ~~^~~~~~~~~~~~~~~~~

Judge Result