C语言程序設計，指針類

#include "stdio.h"

void swap( int *a,int * b){
	
	*a = *a+*b;
	*b = *a-*b;
	*a = *a-*b;	
}
void main()
{
	int a,b;
	scanf("%d %d",&a,&b);
	swap(&a,&b);
	printf("a=%d,b=%d",a,b);
    
}