// 文本模式游戏.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include<conio.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <process.h>
#include <windows.h>
using namespace std;
int main()
{
    int answer[4] = {-1};
    int guess = 0, times = 0;
    int a=0, b=0, i, j;
    system("cls");
    //以下产生4个不重复的数字(0~9)
    for (i = 0; i <= 3; i++) {
        srand((unsigned int)time(0)); /*设置种子,并生成伪随机序列*/
        answer[i] = rand() % 10;

        while(i==0&&answer[i]==0)
            answer[i] = rand() % 10;

        for (j = 0; j < i; j++)
        {
            while (answer[i] == answer[j])
            {
                answer[i]= rand() % 10;
                j = -1;//可以重新for j从0开始循环
            }
        }
    }

    cout << "请猜数字(四位数，每个位置的数字不重复):"  << endl;
    while (a != 4)
    {
        a = 0; b = 0; times++;
        do
        {
            printf_s("\r%d   :",times);
            cin >> guess;
            if (guess == 0) exit(0);
        } while (guess < 0 || guess>9999);

        for (i = 3; i > -1; i--)
        {
            for (j = 0; j < 4; j++)
            {
                if ((int)(guess / pow(10, i)) == answer[j])
                {
                    if (i + j == 3) 
                        a += 1; 
                    else 
                        b += 1;
                }
            }
            guess -= (int)(guess / pow(10, i)) * pow(10, i);
        }
        printf_s("\n\r   %d个位置对%d个位置错\n", a,b);
    }
    printf_s("\n\r  数字猜对了，按任意键结束");
    _getche();
}