5.3.txt

c primer 部分习题答案

#include <stdio.h>
#define ads 7
int main(void)
{
	int days,week,d;
	printf("please input days\n");
	scanf("%d",&days);
	week=days/ads;
	d=days%ads;
	printf("%d days are %d weeks %d days\n",days,week,d);
	return 0;
}