Problem : https://www.hackerrank.com/challenges/c-tutorial-pointer/problem
Solution :
#include <stdio.h>
#include<math.h>
void update(int *pa,int *pb) {
// Complete this function
int temp = *pa;
*pa = *pa + *pb;
*pb = abs(temp - *pb);
}
int main() {
int a, b;
int *pa = &a, *pb = &b;
scanf("%d %d", &a, &b);
update(pa, pb);
printf("%d\n%d", a, b);
return 0;
}