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  1. #include <cstdio>
  2. #include <algorithm>
  3. using namespace std;
  4.  
  5. int main() {
  6.     int a[5][5];
  7. 	int n=4,i,j,k;
  8. 	for(i=1;i<=n;i++)
  9. 		for(j=1;j<=n;j++)
  10. 			a[i][j] = i==j ? 0 : 9;
  11. 	a[1][4]=a[4][3]=a[3][2]=1;
  12. 	for(i=1;i<=n;i++)
  13. 		for(k=1;k<=n;k++)
  14. 			for(j=1;j<=n;j++)
  15. 				a[i][j] = min(a[i][j], a[i][k] + a[k][j]);
  16. 	for(i=1;i<=n;i++)
  17. 		for(j=1;j<=n;j++)
  18. 			printf("%d%c",a[i][j],j<n?' ':'\n');
  19.     return 0;
  20. }
Success #stdin #stdout 0.02s 2680KB
comments (?)
stdin 
Standard input is empty
stdout 
0 9 2 1
9 0 9 9
9 1 0 9
9 2 1 0
https://ideone.com/q5gsEN
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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