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Cod sursa(job #867857)
#include <iostream.h>
#include <fstream.h>
#define PInfinit 1.e20
int n; float a[100][100];
void Lungime_Drumuri()
{
for(int k=1;k<=n;k++)
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
if(a[i][j]>a[i][k]+a[k][j]) a[i][j]=a[i][k]+a[k][j];
}
int main()
{
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
fin>>n;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
fin>>a[i][j];
Lungime_Drumuri();
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
fout<<a[i][j]<<' ';
fout<<'\n';
}
}