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Cod sursa(job #980636)
#include <fstream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int main()
{
int n;
int a[101][101];
f>>n;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++){
f>>a[i][j];
if(!a[i][j])
a[i][j]=1000000000;
}
for(int k=1;k<=n;k++)
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
a[i][j]=min(a[i][j],a[i][k]+a[j][k]);
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++)
g<<(a[i][j]==1000000000||i==j ? 0 : a[i][j])<<" ";
g<<'\n';
}
return 0;
}