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Cod sursa(job #419271)
#include<fstream>
#include<iostream>
using namespace std;
int a[101][101],n;
void citire(){
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();
}
void afisare(){
int i,j;
ofstream g("royfloyd.out");
for(i=1;i<=n;i++,g<<"\n")
for(j=1;j<=n;j++)
g<<a[i][j]<<" ";
g.close();
}
int min(int a,int b){
if(a<b)
return a;
return b;
}
void royfloyd(){
int i,j,k;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
for(k=1;k<=n;k++)
if(i!=j&&i!=k&&a[i][k]!=0&&a[k][j]!=0)
a[i][j]=min(a[i][j],a[i][k]+a[k][j]);
}
int main(){
citire();
royfloyd();
afisare();
return 0;
}