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Cod sursa(job #143576)
#include<fstream>
using namespace std;
int n, a[150][150];
void roy(){
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]))
a[i][j]=a[i][k]+a[k][j];
}
int main(){
int i, j;
ifstream f("royfloyd.in");
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
f>>a[i][j];
f.close();
roy();
ofstream g("royfloyd.out");
for(i=1;i<=n;i++){
for(j=1;j<=n;j++)
g<<a[i][j]<<' ';
g<<endl;
}
g.close();
return 0;
}