[Solved] to write a c program using switch case to find whether a character is vowel or consonant

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You can use isalpha() to see if a character is a letter or not. And you can cut the number of case statements you use by converting the character into lowercase using tolower(), which makes the code simpler and less likely you’d miss something.

if(isalpha(ch)) {
    switch(tolower(ch)) {
        case 'a':
        case 'e':
        case 'i':
        case 'o':
        case 'u':
            printf("Vowel");
            break;
        default:
            printf("Consonant");
        break;
    }
} else {
    printf("Invalid");
}

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solved to write a c program using switch case to find whether a character is vowel or consonant