Cod sursa(job #1334921)

Utilizator t_@lexAlexandru Toma t_@lex Data 4 februarie 2015 19:34:52
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.82 kb
# include <fstream>
using namespace std;
ifstream f("royfloyd.in");
ofstream g("royfloyd.out");
int n,i,j,a[101][101];
void read()
{
    f>>n;
    for(i=1;i<=n;i++)
      for(j=1;j<=n;j++)
           {
            f>>a[i][j];
            if(!a[i][j]&&i!=j)
               a[i][j]=100001;
           }
}
void Roy_Floyd()
{
    int k;
    for(k=1;k<=n;k++)
      for(i=1;i<=n;i++)
        for(j=1;j<=n;j++)
            if(a[i][j]>a[i][k]+a[k][j])
                a[i][j]=a[i][k]+a[k][j];
}
void write()
{
    for(i=1;i<=n;i++)
      {
       for(j=1;j<=n;j++)
            if(a[i][j]!=100001)
                g<<a[i][j]<<" ";
            else
              g<<"0 ";
       g<<'\n';
      }
}
int main()
{
    read();
    Roy_Floyd();
    write();
    f.close();
    g.close();
    return 0;
}