卡住了一个c++的幸运七游戏程序

My Basic Algorithm:

询问投入金额;掷两个六面骰子;如果它们加起来是7，在钱数上加4;否则，从金额中减去1;循环至moneyamount<0;循环游戏用户在提示再次游戏时说n。

/*
*File: hw3
*Author: Nathaniel Goodhue
*
*Created on: 9/15/15
*Description: Game of lucky sevens
*                
*/
#include <iostream>
#include <cstdlib>
#include <cmath>
using namespace std;
int main()
{
   srand (time(NULL));
   double moneyAmount;
   int winValue = 7;
   int numRolls = 0;
   char playAgain = 'y';
   while(playAgain == 'y')
   {
      cout<<"Enter the amount of money you are playing with: $";
      cin>>moneyAmount;
      while(moneyAmount>0)
      {
         int roll1= (rand()%6)+1;
         int roll2 = (rand()%6)+1;
         if(roll1+roll2 == winValue)
         {
            moneyAmount+=4;
             numRolls++;
         }
         else
         {
            moneyAmount-=1;
            numRolls++;
         }
      }
      cout<<"It took "<<numRolls<<" roll(s) to lose all of your money"<<endl;
      // cout<<"Your maximum amount of money was $" <<maxAmount<<" after "<<maxRolls<<" roll(s)"<<endl;
      cout<<"Play again? y/n"<<endl;
      cin>>playAgain;
      if(playAgain == 'y')
      {
         cout<<"Enter the amount of money you are playing with: $";
         cin>>moneyAmount;
         numRolls = 0;
      }
      else 
      {
         break;
      }
   }
   return 0;
}

以上是我当前的代码。它按预期工作。我所坚持的是，我需要能够在钱降到0以下后立即实现这行代码:

  cout<<"Your maximum amount of money was $" <<maxAmount<<" after "<<maxRolls<<" roll(s)"<<endl;

我需要知道什么时候有最多的钱，在多少次滚动之后出现。maxAmount变量是达到的最大金额，maxRolls变量是达到maxAmount时的滚动次数。

int maxAmount = moneyAmount, maxRolls = 0;
while(moneyAmount > 0)
{
    int roll1 = (rand() % 6) + 1;
    int roll2 = (rand() % 6) + 1;
    numRolls++;
    if(roll1 + roll2 == winValue)
        moneyAmount += 4;
    else
        moneyAmount -= 1;
    if (moneyAmount > maxAmount)
    {
        // the current amount of money is greater than the max so set max to current and get the number of rolls
        maxAmount = moneyAmount;
        maxRolls  = numRolls;
    }
}