govno.cpp

#include <cstdio>
#include <vector>

using namespace std;

vector <vector <int>> G1;
int** G2;
vector <pair <int, int>> G3;
int main() {
  int n, m;
  scanf("%d%d", &n, &m);
  G1.resize(n);
  G2 = new int*[n];
  for (int i = 0; i < n; ++i) {
    G2[i] = new int[n];    
  }
  for (int i = 0; i < m; ++i) {
    int a, b;
    scanf("%d%d", &a, &b);
    a--;
    b--;
    G1[a].push_back(b);
    G1[b].push_back(a);    
    G2[a][b] = G2[b][a] = 1;
    G3.push_back(pair<int,int>(a,b));
  }
  for (int i = 0; i < n; ++i) {
    delete[] G2[i];
  }
  delete[] G2;
  return 0;
}