Question

How to calculate frequency of vowels in a string in C

Answer 1

#include <stdio.h> 

int main(void)
{
    int a = 0, e = 0, i = 0, o = 0, u = 0;
    char ch;

    printf("Type a string (Enter + Ctrl-c to exit): ");

    while ((ch = getchar()) != EOF) {
        if (ch == 'a' || ch == 'A')
            a++;
        if (ch == 'e' || ch == 'E')
            e++;
        if (ch == 'i' || ch == 'I')
            i++;
        if (ch == 'o' || ch == 'O')
            o++;
        if (ch == 'u' || ch == 'U')
            u++;
    }

    printf("Frequency of vowel 'a': %d\n", a);
    printf("Frequency of vowel 'e': %d\n", e);
    printf("Frequency of vowel 'i': %d\n", i);
    printf("Frequency of vowel 'o': %d\n", o);
    printf("Frequency of vowel 'u': %d\n", u);

    return 0;
}


/*
run:

Type a string (Enter + Ctrl-c to exit): abvciiooohgdueeee
Frequency of vowel 'a': 1
Frequency of vowel 'e': 4
Frequency of vowel 'i': 2
Frequency of vowel 'o': 3
Frequency of vowel 'u': 1

*/

 

70+ SQL courses for beginners and professionals