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  1. #include <stdio.h>
  2. #include <string.h>
  3. int main() {
  4.     char s[100];
  5.     int c = 0, i;
  6.  
  7.     printf("Enter a string: ");
  8.     fgets(s, 100, stdin);
  9.  
  10.     for (i = 0; s[i] != '\0'; i++) {
  11.         if (s[i] == 'a' || s[i] == 'A' || s[i] == 'e' || s[i] == 'E' || s[i] == 'i' || s[i] == 'I' || s[i] == 'o' || s[i] == 'O' || s[i] == 'u' || s[i] == 'U') {
  12.             c++;
  13.         }
  14.     }
  15.     printf("Vowels count: %d\n", c);
  16.     return 0;
  17. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
helloworldabcd
stdout 
Enter a string: Vowels count: 4
https://ideone.com/eCtZNg
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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