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Cod sursa(job #954367)
#include<fstream>
using namespace std;
int main(){
int n;
ifstream in("royfloyd.in");
ofstream out("royfloyd.out");
in>>n;
int a[n][n], i, j, k;
for(i=0; i<n; i++)
for(j=0; j<n; j++)
in>>a[i][j];
for(k=0; k<n; k++)
for(i=0; i<n; i++)
for(j=0; j<n; j++)
if(a[i][k] && a[k][j] && a[i][j]>a[i][k]+a[k][j])
a[i][j] = a[i][k]+a[k][j];
for(i=0; i<n; i++){
for(j=0; j<n; j++)
out<<a[i][j]<<" ";
out<<endl;
}
in.close();
out.close();
return 0;
}