C++ show vowel and consonant and count it

Question

When user input number from 1 - 26 (which mean a to z), how to show the the letter and count how many vowel and consonant inside it.

Example: U

Answer 1

#include 
using namespace std;

/**
 * Checks if the given letter is a vowel.
 */
bool isVowel(char let) {
    return let == 'a' || let == 'e' || let == 'i' || let == 'o' || let == 'u';
}

/**
 * Returns the character for the given int.
 */
char toChar(int num) {
    return (char) ('a' + num - 1);
}

int main (void) {
    int vow = 0,
        con = 0,
        num,
        i;
    char let;
    cout << "Please enter a number: ";
    cin >> num;
    for (i = 1; i <= num; ++i) {
        let = toChar(i);
        if (isVowel(let)) vow++;
        else con++;
    }
    cout << "The letter was \"" << let
         << "\" and there were " << vow
         << " vowels and " << con
         << " consonants." << endl;
    return 0;
}