程序代码：

/*
A与B各有一个硬币，并且同时出示自己的硬币。如果出示的两个硬币为正正（两个正面），则B给A 3元；如果出现反反，则B给A 1元；如果出现正反（反正），则
A给B 2元。请问这个游戏是公平的吗？
*/

#include <iostream>
#include <iomanip>
#include <stdlib.h>

using namespace std;

void main(void)
{
    unsigned int Number = 500;
    unsigned int Count;
    int Money_A = 0;
    int Money_B = 0;
    int Card_A;
    int Card_B;
    int Win_A = 0;
    int Win_B = 0;

    cout << setw(5) << "No." << " | ";
    cout << "Game" << " | ";
    cout << setw(5) << "A" << " | ";
    cout << setw(5) << "B";
    cout << endl;
    srand((unsigned)time(NULL));
    for (Count = 1; Count <= Number; Count++)
    {
        cout << setw(5) << Count << " | ";
        Card_A = rand() % 2;
        Card_B = 0;
        //Card_B = rand() % 2;
        cout << " " << Card_A << " " << Card_B << " | ";
        if ((Card_A == 1) && (Card_B == 1))
        {
            Money_A += 3;
            Money_B -= 3;
        }
        if ((Card_A == 0) && (Card_B == 0))
        {
            Money_A += 1;
            Money_B -= 1;
        }
        if (Card_A != Card_B)
        {
            Money_A -= 2;
            Money_B += 2;
        }
        cout << setw(5) << Money_A << " | ";
        cout << setw(5) << Money_B << endl;
        if (Money_A > 0)
        {
            Win_A++;
        }
        if (Money_B > 0)
        {
            Win_B++;
        }
    }
    cout << endl;
    cout << "A win games: " << Win_A << endl;
    cout << "B win games: " << Win_B << endl;

    _getwch();
}