#include <stdio.h>
void swap(int* , int*);
int main()
{
int a, b;
a = 10;
b = 20;
printf("before swap() : a=%d, b=%d\n", a, b);
swap(&a, &b);
printf("after swap() : a=%d, b=%d\n", a, b);
return 0;
}
void swap(int *a, int *b){
int temp;
temp = *a;
*a = *b;
*b = temp;
//printf("in swap() : a=%d, b=%d\n", a, b); μ€λ₯ λ°μ
printf("in swap() : a=%d, b=%d\n", *a, *b);
}