为什么不考虑计算机的输入？

Question

在下面的代码中，我找不到错误，导致未考虑计算机的选择。在Nim游戏中考虑了用户的输入，但未减去计算机的碎片。

#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>

void printInstructions();
int getUserInput(int);
int randomRange(int,int);
int PlayerTurn(int);
int smartCompMove(int);
int dumbCompMove(int);

int main()
{
    srand(time(NULL));
    int pieceAmount = randomRange(12,24);
    char smartCompOrDumb;
    printf("Do you want to play a smart computer or a dumb one? Select 'S' or 'D'.");
    scanf("%c",&smartCompOrDumb);
    bool gameOver = false;
    bool playerTurn = true;
    printInstructions();

    while(pieceAmount > 0 && gameOver == false)
    {
        if (playerTurn == false)
        {
            if(pieceAmount <= 4)
            {
                printf("\nThe Computer has won :P  ");
                gameOver = true;
                exit(0);
            }
            if (smartCompOrDumb == 's' || smartCompOrDumb == 'S')
            {
                playerTurn = true;
                pieceAmount = smartCompMove(pieceAmount);
                printf("%d",pieceAmount);
            }
            else if (smartCompOrDumb == 'd' || smartCompOrDumb == 'D')
            {
                playerTurn = true;
                pieceAmount = dumbCompMove(pieceAmount);
                printf("%d",pieceAmount);
            }
        }
        else
        {
            if(pieceAmount <= 4)
            {
                printf("\nYou have won :)  ");
                gameOver = true;
                exit(0);
            }
            playerTurn = false;
            pieceAmount = PlayerTurn(pieceAmount);
            printf("%d",pieceAmount);
        }
    }

    return 0;
}

void printInstructions()
{
    printf("\nThis game is called Nim and it is thousands of years old.");
    printf("\nTake turns picking one to three pieces from a pile and whomever picks the last piece wins.");
    printf("\n__________________________________________________________________________________________");
}

int randomRange(int low,int high)
{
    return rand()% (high - low) + low;
}

int PlayerTurn(int pieceAmount)
{
    pieceAmount = getUserInput(pieceAmount);
    return pieceAmount;
}

int getUserInput(int pieceAmount)
{
    int userInput = 0;
    bool flag = true;

    while (flag == true)
    {
        if (pieceAmount > 4)
        {
            printf("\nThere are %d pieces remaining.\n",pieceAmount);
            printf("\nHow many pieces do you want to select? ");
            scanf("%d", &userInput);
            if (userInput >= 1 && userInput < 5)
            {
                pieceAmount = pieceAmount - userInput;
                flag = false; 
            }
            else
            {
                printf("This is not a valid move so try again.");
            }
        }
    }
    return pieceAmount;
}

int dumbCompMove(int pieceAmount)
{
    int dumbPick = rand() % 3 + 1;
    printf("\nComputer will pick from the stack. \n");
    pieceAmount = pieceAmount - dumbPick;
    printf("\nComputer picked %d pieces. \n", dumbPick );
    return pieceAmount;
}

int smartCompMove(int pieceAmount)
{
    int smartPick = 1;
    printf("\nThe computer will select their pieces. \n");
    if (pieceAmount >= 15 && pieceAmount < 24)
    {
      smartPick = 2;
      pieceAmount = pieceAmount - smartPick;
    }
    else if (pieceAmount >= 10 && pieceAmount < 15)
    {
      smartPick = 4;
      pieceAmount = pieceAmount - smartPick;
    }     
    else if (pieceAmount >= 6 && pieceAmount < 10)
    {
      smartPick = 1;
      pieceAmount = pieceAmount -smartPick;
    }
    else
        pieceAmount = 3;
        printf("\nThe computer selected %d pieces. \n",smartPick);
        return pieceAmount;
} 

我早些时候可以使用此代码，但是我必须以某种方式更改了一些小改动，现在它无法正常运行。我正在使用Cloud9程序来运行它。