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Cod sursa(job #767795)
#include<fstream>
using namespace std;
int n,a[100][100],i,j,k;
void citire()
{
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()
{
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if (a[i][k]!=0 && a[k][j]!=0 && (a[i][j] > a[i][k] + a[k][j] || a[i][j]==0) && i != j) a[i][j] = a[i][k] + a[k][j];
}
void afisare()
{
ofstream g("royfloyd.out");
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
g<<a[i][j];
}
int main()
{
citire();
royfloyd();
afisare();
return 0;
}