Anonymous

int matriz_do_arquivo(const char *fname, int **m, int *i, int *j){  FILE *fp;  int k, n;  fp = fopen(fname, "r");  if(!fp)    return 0;  fscanf(fp, "%d%d", i, j);  m = aloca_matriz(*i,*j);  for(k=0; k < (*i); k++)    for(n=0; n < (*j); n++)    {      int err = fscanf(fp, "%d", &m[k][n]);      if(err == 0)        return 0;    }  fclose(fp);  return 1;}int **aloca_matriz(int i, int j){  int **mat, k;  mat = (int**) calloc(i, sizeof(int*));  for(k=0; k<j; k++)  {    mat[k] = (int *) calloc(j, sizeof(int));  }  return mat;}void libera_matriz(int **mat, int i, int j){  int k;  for(k=0; k<j; k++)  {    free(mat[k]);  }  free(mat);}int main(){  int **m, i, j;  matriz_do_arquivo("grafo", m, &i, &j);  printf("%d\n", m[0][3]);  libera_matriz(m, i, j);  return 0;}