c program to check leap year | education word

Qhow to find  c codec program to check whether the given year is leap year or not ?

in this program i use if and else if 

#include<stdio.h>
int main()
{

    int year;
    printf("enter a year to cheak if it a leap year\n");
    scanf("%d",&year);
    if(year%400==0)
        printf("%d is a leap year .\n",year);
    else if (year %100==0)
        printf("%d is not  a leap year\n",year);
        else if(year%4==0)
            printf("%d is a leap year.\n",year);
        else
            printf("%d is not a leap year \n",year);
        return 0;


}