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  1. Prepare
  2. C++
  3. Introduction
  4. Pointer
  5. Discussions

Pointer

  • michaelchen0611
     + 0 comments
    #include <stdio.h>

void update(int *a,int *b) {
    // Complete this function    
    *a = *a + *b;
    *b = (*a-*b)-*b;
    if (*b < 0){
        *b = -*b;
    }
}

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;
}