Cod sursa(job #2202151)

Utilizator victorv88Veltan Victor victorv88 Data 7 mai 2018 18:48:57
Problema Floyd-Warshall/Roy-Floyd Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.26 kb
#include <iostream>
#include <fstream>

using namespace std;

ifstream f("rf.in");
ofstream g("rf.out");

int n, mat[260][260], drumuri[260][260];

void parcurgere()
{
    int aux;
    for (int k=1; k<=n; k++)
    {
        for (int i=1; i<=n; i++)
        {
            for (int j=1; j<=n; j++)
            {
                if (i==k || j==k)
                    continue;
                aux=mat[i][j];
                mat[i][j]=min(mat[i][j],mat[i][k]+mat[k][j]);
                 if (mat[i][j]==mat[i][k]+mat[k][j])
                    drumuri[i][j]=drumuri[i][k]+drumuri[k][j];
            }
        }
    }
    for (int i=1; i<=n; i++)
    {
        for (int j=1;j<=n;j++)
        {
            g << mat[i][j] <<' ';
        }
        g << '\n';
    }
    for (int i=1; i<=n; i++)
    {
        for (int j=1;j<=n;j++)
        {
            g << drumuri[i][j] <<' ';
        }
        g << '\n';
    }
}

int main()
{
    f >> n;
    for (int i=1; i<=n; i++)
    {
        for (int j = 1 ; j <= n; j ++)
        {
            f >> mat[i][j];
            if (mat[i][j]==0 && i!=j)
                mat[i][j]=-1;
            else if (i!=j)
                drumuri[i][j]=1;
        }
    }
    parcurgere();
    return 0;
}