Question

求c语言大神，在线等，打对勾的

Answer 1

#include<stdio.h>
main()
{
 int i,j;
 for(i=100;i<=999;i++)
  if(i%3==0&&i%5==0&&i%7==0)
   printf("%5d",i);
}

+++++++++++++++++++++++++

#include<stdio.h>
main()
{

	int n;
	printf("请输入年份: ");
	scanf("%d",&n);
	if (((n%4==0)&&(n%400==0))||((n%4==0)&&(n%100!=0))) /*判断能被4整除，又能被400整除或者能被                                                                                                                            4整除不能被100整除*/
		printf("%d是闰年!",n);
	else     
		printf("%d不是闰年!",n);	
}

Answer 2

第一题
for(int i=100;i<=999;i++){
if((i%3==0)&&(i%5==0)){
printf("i=%d\n",i);
}
}