LEAP YEAR Program in C

LEAP YEAR Program in C
Code:
  #include<stdio.h>
int main(){
  int y;
  scanf("%d",&y);
  if((y%400==0))
    printf("%d is a leap year\n",y);
  else if(y%100==0)
    printf("%d is not a leap year\n",y);
  else if (y%4==0)
      printf("%d is a leap year\n",y);
    else
      printf("%d is not a leap year\n",y);
  return 0;
}