C语言判断某个年份是否是闰年

// Program to determines if a year is a leap year

#include <stdio.h>

int main(void)
{
int year, rem_4, rem_100, rem_400;

printf("Enter the year to be tested: ");
scanf("%i", &year);

rem_4 = year % 4;
rem_100 = year % 100;
rem_400 = year % 400;

if((rem_4 == 0 && rem_100 != 0) || rem_400 == 0)
{
printf("It's a leap year.\n");
}
else
{
printf("Nope, it's not a leap year.\n");
}

return 0;
}