Question

I am trying to write this code which asks "Write a program that ask the user, the question: What is a^b?
//The program generates two signed integers and gives the user four attempts to get the correct answer
//a=- , b = +
//a= + , b = - "

So far this what I wrote. I am not sure how to do this correctly.

#include<iostream>
#include<cstdlib>
#include<ctime>

using namespace std;

int main()
{
   srand(time(0));
   int guess,a,ans,b, k;
   char response = 'y';

   while (response != 'n')

   {
       unsigned int ans = pow(a, b);
      
       a = 1 + rand() % 10;
       b = 1 + rand() % 10;
       cout << "What is a^b" << endl;
      
       for (int i = 1; i <= 4; i++)
       {
           k = i;
           cin >> guess;
           if (guess == ans)
               break;
           if (guess != ans)
               cout << "Your answer is incorrect" << endl;
           if (guess != ans)
               cout << "Your answer is incorrect" << endl;
           if (guess != ans)
               cout << "Your answer is incorrect" << endl;
       }

       if (k == 4 && guess != ans)
       {
           cout << "Four attempts allowed, play again? (y or n)" << endl;
           cin >> response;
       }
       else
       {
           cout << "Your guess is right, play agan (y or n)" << endl;
           cin >> response;
       }
   }

   system("pause");
   return 0;
}