#include <stdio.h>
void swap_pointers(int **p1, int **p2) {
// Your logic here
**p1 = **p1 + **p2 -(**p2 = **p1);
}
int main() {
int a, b;
scanf("%d %d", &a, &b);
int *p1 = &a;
int *p2 = &b;
swap_pointers(&p1, &p2);
printf("%d %d", *p1, *p2);
return 0;
}
Input
10 20
Expected Output
20 10