#include <stdio.h>
void swap (int*x,int*y);

int main() {
	int date1[5]={1,2,3,4,5};
	int date2[5]={6,7,8,9,10};
	
	for(int i=0;i<5;i++){
	swap(&date1[i],&date2[i]);
	printf("date1[%d]=%d date2[%d]=%d\n",i,date1[i],i,date2[i]);
	}
	return 0;
}

void swap (int*x,int*y)
{
	int w;
	w=*x;
	*x=*y;
	*y=w;

}