Repeating a question when answer is wrong - c++

Question

So I basically have to create a small quiz however I'm unsure on how i would re ask the question I would use when the answer is wrong. I believe its a loop but I'm lost on which one. This is what I have so far
#include <iostream>
using std::cin;
using std::cout;
int main() {
std::string answer;
cout << "Is K before T in the alphabet ?";
cin >> answer;
if (answer == "y") {
cout << "Well done!";
}
else {
cout << "Try again";
}

Answer 1

You could do something like this with a simple boolean control variable:
int main()
{
std::string answer;
bool isCorrect = false;
while(isCorrect == false)
{ std::cout << "Is K before T in the alphabet ?";
std::cin >> answer;
if (answer == "y")
{
isCorrect = true;
std::cout << "Well done!";
}
else
{
std::cout << "Try again";
}
}
}

Answer 2

If you plan on having several questions, you can create a helper function and then call it for each question:
bool inputValidation(std::string strQuestion, std::string strAnser) {
std::string userInput;
std::cout << strQuestion;
std::cin >> userInput;
while (true) {
if (userInput == strAnswer)) {
return true;
}
else {
std::cout << strQuestion;
std::cin >> userInput;
}
}
}
int main() {
bool correct = InputValidation("What is the answer?","42");
correct = InputValidation("Is K before T in the alphabet?", "yes");
}
Then you can put all your questions and answers in a map and use a for each loop to cycle through each question-answer pair. If you need multiple outputs, say, "y" == "Yes" == "1", you can pass a vector<std::string> as the answer.