C语言编程：判断年份是否为闰年

Question

包括2条，输入年份
1.整百年份能被400整除
2。非整百年份能被4整除

Answer 1

#include<stdio.h>
void main(){
int year;
printf("请输入年份：");
scanf("%d",&year);
if(year%400==0||(year%4==0&&year%100!=0))
printf("%d是闰年!\n",year);
else printf("%d是平年!\n",year);
}

Answer 2

#include<stdio.h>
int main(){
int year;
printf("输入年份：");
scanf("%d",&year);
if(year%400==0||(year%100!=0&&year%4==0))
printf("是闰年。\n");
else printf("不是闰年。\n");
return 0;
}

Answer 3

#include <stdio.h〉
int main(int argc, char const *argv[])
{
int year=2018;
if(0==year%4 && 0!=year%100 | | 0==year%400 )
{
printf( "%d是闰年\n" ,year);
}
else
{
printf( "%d不是闰年\n" ,year);
}
return 0;
}

Answer 4

#include<stdio.h>
void main()
{
int i;
scanf("%d",&i);
if(i%100==0&&i%400==0)
printf("yes");
else if(i%4==0)
printf("yes");
else
printf("no");
}

Answer 5

int y;

scanf("%d",&y);

if (y%4==0&&y%100||y%400==0) puts("闰年");
else puts("平年");