#include<stdio.h>
void main()
{
int year,leap=0; /* leap=0:预置为非闰年*/
printf("Please input the year:");
scanf("%d",&year);
if (year % 4==0)
{
if (year % 100 != 0)
leap=1;
}
else
{
if (year%400==0)
leap=1;
}
if (leap)
printf("%d is a leap year.\n",year);
else
printf("%d is not a leap year.\n",year);
}
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