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Cod sursa(job #406006)
#include<fstream>
using namespace std;
int n, a[101][101];
void citire()
{
int i, j;
ifstream f("royfloyd.in");
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
f>>a[i][j];
f.close();
}
void royfloyd()
{
int i, j, k;
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(a[i][k]&&a[k][j])
if(a[i][j]>a[i][k]+a[k][j])
a[i][j]=a[i][k]+a[k][j];
}
void afisare()
{
int i, j;
ofstream g("royfloyd.out");
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
g<<a[i][j]<<" ";
g<<"\n";
}
g.close();
}
int main()
{
citire();
royfloyd();
afisare();
return 0;
}