#include <stdio.h>
void swap(int*,int*);
int main(void){
int a,b;
a=10;
b=20;
printf("before swap():a=%d,b=%d\n",a,b);
swap(&a,&b); //aμ bμ μ£Όμ μ λ¬
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);
}