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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. #define ms(s,n) memset(s,n,sizeof(s))
  5. #define all(a) a.begin(),a.end()
  6. #define present(t, x) (t.find(x) != t.end())
  7. #define sz(a) int((a).size())
  8. #define FOR(i, a, b) for (int i = (a); i < (b); ++i)
  9. #define FORd(i, a, b) for (int i = (a) - 1; i >= (b); --i)
  10. #define pb push_back
  11. #define pf push_front
  12. #define fi first
  13. #define se second
  14. #define mp make_pair
  15. #define endl "\n"
  16.  
  17.  
  18. typedef long long ll;
  19. typedef unsigned long long ull;
  20. typedef long double ld;
  21. typedef pair<int,int> pi;
  22. typedef vector<int> vi;
  23. typedef vector<pi> vii;
  24.  
  25. const int MOD = (int) 1e9+7;
  26. const int INF = (int) 1e9+2804;
  27. inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
  28. inline ll lcm(ll a,ll b){return a/gcd(a,b)*b;}
  29.  
  30. int n, m;
  31. int a[1001][1001];
  32. int main(){
  33. 	cin >> n >> m;
  34. 	FOR(i, 0,  m){
  35. 		int x, y; cin >> x >> y;
  36. 		a[x][y] = a[y][x] = 1;
  37. 	}
  38. 	for(int i = 1; i <= n; i++){
  39. 		for(int j = 1; j <= n; j++){
  40. 			cout << a[i][j] << " ";
  41. 		}
  42. 		cout << endl;
  43. 	}
  44. 	return 0;
  45. }
  46.  
  47.  
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/VbX7f0
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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