#include<iostream>
void PorDefecto(int a, int b = 0, int c = -7, int d = 2);
void main() {
PorDefecto(1,3,4,3);
// PorDefecto();
// PorDefecto(1,2,,4);
PorDefecto(3,1);
PorDefecto(33);
cout << endl << "Presione una tecla para salir";
cin.get();
}
void PorDefecto(int a, int b = 0, int c = -7, int d = 2) {
cout << endl << "a = " << a << "b = " << b << "c = " << c << "d = " << d;
}