C program leap year finder

#include<stdio.h>

int main(){

int year;

printf("enter the year = ");

scanf("%d",&year);

if (year % 400 == 0){

printf(" %d is a leap year",year);

}

else if (year % 100 == 0){

printf("%d is a leap year",year);

}

else if(year%4==0){

printf("%d is a leap year",year);

}

else {

printf("%d is not a leap year",year);

}

printf("\n");

main();

}