c语言判断某一年是否为闰年

判断某一年是否为闰年

#include
int main()
{
     
	int year ,leap;
	printf("enter year:");
	scanf("%d",&year);
	if(year%4==0
	) 
	{
     
		if(year%100==0)
		{
     
			if(year%400==0)
			     leap=1;
			    else
			     leap=0;
		}
		else
		    leap=1;
	}
	else
	  leap=0;
	  if(leap)
	    printf("%d is",year);
	  else
	    printf("%d is not",year);
	printf("a leap year.\n");
	return 0;
	    
 } 

运行结果