View Code of Problem 28

#include <stdio.h>
//输入某一年份，请编写程序判断该年是否为闰年。输入有多组数据，每组数据包括一个正整数Y。
int main()
{
  int year,leap;
  while(scanf("%d",&year)!=EOF)
  {
  	if((year%4==0&&year%100!=0) || (year%400==0))
		leap = 1;
	else
		leap = 0;
	if(leap==1)
		printf("%d is a leap year.\n",year);
	else
		printf("%d is not a leap year.\n",year);
		    
  }
  return 0;
}