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Cod sursa(job #885956)
#include <fstream>
#include <iostream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int a[101][101],n;
void citire()
{
int i,j;
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
f>>a[i][j];
f.close();
}
void transformare()
{
int k,i,j;
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]&&(a[i][j]>a[i][k]+a[k][j]||!a[i][j])&&i!=j)
a[i][j]=a[i][k]+a[k][j];
}
void afisare()
{
int i,j;
for(i=1;i<=n;i++)
{for(j=1;j<=n;j++)
g<<a[i][j]<<' ';
g<<'\n';}
g.close();
}
int main()
{
citire();
transformare();
afisare();
}