C++ code not working

What is wrong with this code? I think it has to do with the char variable but it just messes up whenever it askes for a y or n input.

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#include <stdafx.h>
#include <iostream>
#include <iomanip>
#include <cstdlib> //for rand() function
#include <ctime> // for srand() function
using namespace std;

int main()
{
    int frequencyHeads = 0;
    int frequencyTails = 0;
    int loopCount = 0; //count the repetition of coin toss
    int coinToss; // 1 for head, 2 for tail
    char yesNo;

    srand( time( NULL )); //seed value for the random number generator

    //format floating-point numbers
    cout << fixed << showpoint << setprecision(2);

    cout << "Do you want to continue the game? "
        << " (Y for yes and N for no.)\n";
    cin >> yesNo;

    //Table heading
    cout << "\n\nFrequency of heads  "
        << "Frequency of tails  "
        << "Ratio of heads / tails\n";
    cout << "------------------  ------------------  "
        << "----------------------\n";


    //Add your code here whatever you see fits.
   
    while(yesNo == 'y') {
        cout << "\n\n" << frequencyHeads
             << " " << frequencyTails
        << " " << coinToss;

        while( loopCount < 100)//do not modify this loop body
        {
            //generate a random number, 1 or 2
            coinToss = rand() % 2 + 1;

            if( coinToss == 1 )
                frequencyHeads++;
            if( coinToss == 2 )
                frequencyTails++;

            loopCount++;
        }//No modification-Restriction ends here.

        //Add your code again from this point on
        //to complete the program
       
        cout << "Do you want to continue the game? "
        << " (Y for yes and N for no.)\n";
        cin >> yesNo;
    }
   
    cout << "GameOver: Thank you!";
    cout << endl << endl;

    return 0;
}

>>15
It DOES matter that the variable has not been initialized when you are trying to output it before it has been assigned a value.  And stop saying "when you initialize int a", its called DECLARING the variable.  INITIALIZING is setting the initial value.