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Cod sursa(job #704369)
#include<iostream>
#include<fstream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int a[101][101],i,j,n;
void face(){
for(int k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if( i!=k && a[i][j]!=0 && a[k][j]!=0 && a[i][k]!=0 && k!=j && i!=j && a[i][k]+a[k][j] < a[i][j] )
a[i][j]=a[i][k]+a[k][j];
}
void citire(){
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
int x;
f>>x;
a[i][j]=x;
}
f.close();
}
int main(void){
f>>n;
citire();
face();
for(i=1;i<=n;i++)
{for(j=1;j<=n;j++)
g<<a[i][j]<<" ";
g<<endl;}
g.close();
return 0;
}