48. Pointer- Swap Value

#include <stdio.h>

void swap(int *p1, int *p2) {
    int temp = *p1;   // copy the value 5 into temp
    *p1 = *p2;        // overwrite p1's location with 9
    *p2 = temp;
}

int main() {
    int a, b;
    scanf("%d %d", &a, &b);

    swap(&a, &b);

    printf("a = %d ", a);
    printf("b = %d", b);

    return 0;
}