C program to check whether input alphabet is a vowel or not

#include <stdio.h>
 
int main()
{
  char ch;
 
  printf("\nEnter a character:");
  scanf("%c", &ch);
 
  if (ch == 'a' || ch == 'A' || ch == 'e' || ch == 'E' || 

  ch == 'i' || ch == 'I' || ch =='o' || ch=='O' || ch == 'u' 

  || ch == 'U')

  printf("%c is a vowel\n", ch); 

  else 

  printf("%c is not a vowel.\n", ch);
  return 0;
}

Output:

 Enter a character : e

 e is a vowel 

 Enter a character : w

 w is not a vowel