#include <stdio.h>
#include <stdlib.h>

int changeop(int *add)
{
    printf("choisisser la nouvelle valeur de *op et nbr1 =");
    scanf("%d",add);
}

int main (int argc, char** argv) 
{
    int nbr1=0;
    int nbr2=0;
    int *op = NULL;
    int add;

    printf("choisisser un nombre = ");
    scanf("%d",&nbr1);
    
    nbr2 = nbr1;
    printf("Valeur de nbr1 = %d\n",nbr1);
    printf("Valeur de nbr2 = %d\n\n",nbr2);

    op = &nbr1;
    printf("Valeur de OP = %d\n\n",*op);

    *op = 40;
    printf("Valeur de op (10=40) = %d\n\n",*op);

    printf("Valeur de nbr 1 = %d",nbr1);

    changeop(&add);
    printf("valeur de add = %d", add);
    printf("Valeur de nbr1 =%d",nbr1);

    return EXIT_SUCCESS;
}