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Cod sursa(job #916436)
#include<iostream.h>
#include<fstream.h>
using namespace std;
ifstream f;
ofstream g;
int n,m[101][101];
void citire()
{f.open("royfloyd.in");
f>>n;
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
f>>m[i][j];
f.close();
}
void roy_floyd()
{
for(int k=1;k<=n;k++)
for(int i=1;i<=n;i++)
for(int j=1;j<=n;j++)
if(m[i][j]>m[i][k]+m[k][j])
m[i][j]=m[i][k]+m[k][j];
}
void afisare()
{g.open("royfloyd.out");
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
g<<m[i][j]<<" ";
g<<endl;
}
g.close();
}
int main()
{citire();
roy_floyd();
afisare();
return 0;
}