亞亞的小窩

輸入西元年 year (1<=year<=9999)
列印此年是否為閏年(leap year)。
輸入西元年為 0 代表結束。
(提示:當西元年被 4 整除而且不被 100 整除，或者是被 400 整除皆為閏年)

輸入:

2012
100
1000
2000
0

輸出:

2012 is a leap year.
100 is not a leap year.
1000 is not a leap year.
2000 is a leap year.

程式碼:

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int year;
    while(1)
    {
        scanf("%d",&year);
        if(year==0) break;
        else
        {
            if(year%4==0&&year%100!=0||year%400==0)
                printf("%d is a leap year.\n",year);
            else printf("%d is not a leap year.\n",year);
        }
    }
}