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Cod sursa(job #775083)
#include<fstream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
#define NMAX 110
int a[NMAX][NMAX],n,i,j,k;
int main()
{
f>>n;
for(i=1;i<=n;++i)
for(j=1;j<=n;++j)
f>>a[i][j];
for(k=1;k<=n;k++)
for(i=1;i<=n;++i)
for(j=1;j<=n;++j)
if(i!=j && a[i][k] && a[k][j])
if(a[i][k]+a[k][j]<a[i][j])
a[i][j]=a[i][k]+a[k][j];
for(i=1;i<=n;++i){
for(j=1;j<=n;++j)
g<<a[i][j]<<' ';
g<<'\n';
}
return 0;
}