Cod sursa(job #541268)

Utilizator padreatiAurelian Tutuianu padreati Data 24 februarie 2011 22:37:22
Problema Floyd-Warshall/Roy-Floyd Scor 100
Compilator c Status done
Runda Arhiva educationala Marime 0.78 kb
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main(void) {
    int INF = 1 << 15;
    FILE *in = fopen("royfloyd.in", "r");
    FILE *out = fopen("royfloyd.out", "w");

    int n, i, j, k;
    int m[100][100];

    fscanf(in, "%d", &n);
    for (i = 0; i < n; i++)
        for (j = 0; j < n; j++) {
            fscanf(in, "%d", &m[i][j]);
            if (m[i][j] == 0 && i != j)
                m[i][j] = INF;
        }

    for (k = 0; k < n; k++)
        for (i = 0; i < n; i++)
            for (j = 0; j < n; j++)
                if (m[i][j] > m[i][k] + m[k][j])
                    m[i][j] = m[i][k] + m[k][j];


    for (i = 0; i < n; i++) {
        for (j = 0; j < n; j++)
            fprintf(out, "%d ", m[i][j]);
        fprintf(out, "\n");
    }

    return EXIT_SUCCESS;
}