text: #include "elemento.h"
  
  void Intercambiar(S1 v[], int i, int j) {
  
    int tmp; 
    int *aux;
    char s;
  
    s      = v[i].c;
    v[i].c = v[j].c;
    v[j].c = s;
  
    tmp    = v[i].k;
    v[i].k = v[j].k;
    v[j].k = tmp;
  
    aux    = v[i].m;
    v[i].m = v[j].m;
    v[j].m = aux;
  
  }
  
  