Amcat-automata-question10.c

#include <stdio.h>
#include <string.h>

int check_vowel(char);

int main()
{
  char s[100], t[100];
  int c, d = 0;

  printf("Enter a string to delete vowels\n");
  gets(s);

  for(c = 0; s[c] != '\0'; c++) {
    if(check_vowel(s[c]) == 0) {       // If not a vowel
      t[d] = s[c];
      d++;
    }
  }

  t[d] = '\0';

  strcpy(s, t);  // We are changing initial string. This is optional.

  printf("String after deleting vowels: %s\n", s);

  return 0;
}

int check_vowel(char ch)
{
    if (ch == 'a' || ch == 'A' || ch == 'e' || ch == 'E' || ch == 'i' || ch == 'I' || ch =='o' || ch=='O' || ch == 'u' || ch == 'U')
      return 1;
    else
      return 0;
}