Yes or No

#include <iostream>

char yesOrNo; // stores the yes or no response

void userResponse() {
    do {
        std::cout << "Yes or no(y/n): ";
        std::cin >> yesOrNo;
        yesOrNo = std::tolower(yesOrNo); // allows uppercase characters to be entered
    } while (!std::isalpha(yesOrNo));

    if (yesOrNo == 'y') {
        std::cout << "You picked yes!";
    }
    else if (yesOrNo == 'n') {
        std::cout << "You picked no!";
    }
    else {
        std::cout << "Invalid Input. Please enter either 'y' or 'n'.";
    }
}

int main() {
    userResponse();

    return 0;
}