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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define endl "\n"
  4. #define ll long long
  5. #define faster() ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
  6. const int MOD = 1e9 + 7 ;
  7.  
  8. int n , m ; 
  9. int a[1005][1005];
  10. void solve(){
  11.     cin >> n >> m ;
  12.     for(int i = 1 ; i <= m ; i++){
  13.         int x , y ;  cin >> x >> y ;
  14.         a[x][y] = 1 ;
  15.         a[y][x] = 1 ;
  16.     }
  17.     for(int i = 1 ; i <= n ; i++){
  18.         for(int j = 1 ; j <= n ; j++){
  19.             cout << a[i][j] << " ";
  20.         }
  21.         cout << endl;
  22.     }
  23. }
  24.  
  25. int main() {
  26.     faster(); 
  27.     int test = 1 ; 
  28.     // cin >> test ;
  29.     while(test--)   solve();
  30.     return 0;
  31. }
  32.  
  33.  
  34.  
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin
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5 4
4 3
3 1
4 2
5 4
stdout
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0 0 1 0 0 
0 0 0 1 0 
1 0 0 1 0 
0 1 1 0 1 
0 0 0 1 0
https://ideone.com/gV3inb
language:
C++ (gcc 8.3)
created:
106 days ago
visibility:
public

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