Cod sursa(job #1361058)

Utilizator esti.varzaesti varza esti.varza Data 25 februarie 2015 19:24:08
Problema Floyd-Warshall/Roy-Floyd Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.9 kb
#include <iostream>
#include <fstream>

using namespace std;
ifstream in("royfloyd.in");
ofstream out("royfloyd.out");
int INF=100000, d[10][10], n;
void citire()
{
    int i, j, k;
    in >> n;
    for(i=1; i<=n; i++)
        for(j=1; j<=n; j++)
        {
            in>>d[i][j];
            if(i!=j && d[i][j]==0)
                d[i][j]=INF;
        }
}

void royfloyd()
{
    int i, j, k;
    for(k=1; k<=n; k++)
        for(i=1; i<=n; i++)
            for(j=1; j<=n; j++)
                if(d[i][k]+d[k][j]<d[i][j])
                    d[i][j]=d[i][k]+d[k][j];
}

void afisare()
{
    int i, j, k;
    for(i=1; i<=n; i++)
    {
        for(j=1; j<=n; j++)
            if(d[i][j]==INF)
                out<<"0 ";
            else
                out<<d[i][j]<<" ";
        out << "\n";
    }
}

int main()
{
    citire();
    royfloyd();
    afisare();
    return 0;
}