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Cod sursa(job #683479)
#include <fstream>
using namespace std;
long int i,j,k,a[105][105],n;
int main()
{
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
f>>n;
for (i=1;i<=n;i++)
for (j=1;j<=n;j++) {
f>>a[i][j];
if (a[i][j]==0) a[i][j]=100005;
}
for (k=1;k<=n;k++)
for (i=1;i<=n;i++)
for (j=1;j<=n;j++)
if (a[i][j]>a[i][k]+a[k][j]) a[i][j]=a[i][k]+a[k][j];
for (i=1;i<=n;i++) {
for (j=1;j<=n;j++) {
if (i==j) g<<'0'<<' ';
else {
if (a[i][j]==100005) g<<'0'<<' ';
else
g<<a[i][j]<<' ';
}
}
g<<'\n';
}
f.close();
g.close();
return 0;
}