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Cod sursa(job #1815693)

Utilizator Dupree7FMI Ciobanu Andrei Dupree7 Data 25 noiembrie 2016 17:48:20
Problema Floyd-Warshall/Roy-Floyd Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.31 kb
#include <fstream>

using namespace std;

#define Nmax 256
ifstream f("rf.in");
ofstream g("rf.out");

int n, a[Nmax][Nmax], nr[Nmax][Nmax];

void RoyFloyd()
{
    int i, j, k;

    for(k = 0; k < n; k++)
        for(i = 0; i < n; i++)
            for(j = 0; j < n; j++)
                {
                    if(i != j && a[i][k] && a[k][j] && a[i][j] && a[i][j] == a[i][k] + a[k][j])
                        nr[i][j]++;
                    else if(i != j && 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];
                        nr[i][j] = 1;
                        }
                }

    for(i = 0; i < n; i++)
        {
            for(j = 0; j < n - 1; j++)
                g << a[i][j] << " ";
            g << a[i][n - 1];
            g << "\n";
        }

    for(i = 0; i < n; i++)
        {
            for(j = 0; j < n - 1; j++)
                g << nr[i][j] << " ";
            g << nr[i][n - 1];
            g << "\n";
        }
}

int main()
{
    f >> n;
    int i, j;

    for(i = 0; i < n; i++)
        for(j = 0; j < n; j++)
            {
            f >> a[i][j];
            if(i != j)
                nr[i][j] = 1;
            }

    RoyFloyd();

    return 0;
}