gistfile1.txt

#include <stdio.h>

int main(void) {
		int m = 11, n = 22;
		int *p = &m, *q = &n; //11, 22
		printf("%d %d\n", *p, *q);
		
		int **pp = &p, **qq = &q; //11, 22
		printf("%d %d\n", **pp, **qq); //
		
		int *r = *pp; //11
		*pp = *qq; //22, 22
		
		printf("%d %d\n", *p, *q);
		
		*qq = r; //22, 11
		printf("%d %d\n", *p, *q);
		
		return 0;
}