#include <iostream>
using namespace std;	

void EchangeParPointeurMarchePas (int* a, int* b)
{
    int* c;
    c=a;
    cout << a << endl;
    a=b;
    cout << a << endl;
    b=c;
}

int main(){
	int c=10;
	int d=1;
int * a = &c;
int * b = &d;

cout << a << "  " << b << endl;

EchangeParPointeurMarchePas (a, b);

cout << a << "  " << b << endl;

}