c语言编程问题求解，，，，

int day=0;
printf("请输入天数:\n");
scanf("%d",&day);
printf("周数:%d\n天数:%d",day/7,day%7);

int day=0;
printf("请输入天数:\n");
scanf("%d",&day);
printf("周数:%d\n天数:%d",day/7,day%7);