#include <stdio.h>
void echange (int* x, int* y );
void ajouteUn (int x);
void ajouteDeux (int* x);
void ajouteTrois (int x, int* y);
int main()
{
printf("\t\ta\tb\tc\td\n");
int a=1, b=2, c=3, d=4;
printf("avant 1\t\t%d\t%d\t%d\t%d\n",a,b,c,d);
echange(&a,&b); echange(&c,&d); /*1*/
printf("après 1\t\t%d\t%d\t%d\t%d\n",a,b,c,d);
ajouteUn(a); ajouteDeux(&b); /*2*/
printf("après 2\t\t%d\t%d\t%d\t%d\n",a,b,c,d);
ajouteTrois(c, &d); /*3*/
printf("après 3\t\t%d\t%d\t%d\t%d\n",a,b,c,d);
echange(&a, &d); /*4*/
printf("après 4\t\t%d\t%d\t%d\t%d\n",a,b,c,d);
}
void echange (int* x, int* y)
{
int temp;
temp=*x;
*x=*y;
*y=temp;
}
void ajouteUn (int x)
{
x = x + 1;
}
void ajouteDeux (int* x)
{
*x = *x + 2;
}
void ajouteTrois (int x, int* y)
{
x = x + 3;
*y = *y + 3;
}
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