20140506_KUAS_VisualC++_Exam09

/************************************/
/** 20140506 Exam 09               **/
/** Maker  : Yan                   **/
/** E-Mail : [email protected] **/
/** Date   : 2014/05/26 am.11:51   **/
/************************************/

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

int compare(int, int);

void main()
{
    printf("-----------------------Start Game !-----------------------\n");
    srand(time(NULL));
    int random = rand() % (100 - 1 + 1) + 1;
    printf("-->Random = %d\n", random);
    int max_limit = 100, min_limit = 1, money = 1000;
    while(1)
    {
        printf("You have %4d dollars. And the range is %d to %d.\n", money, min_limit, max_limit);
        printf("Enter a number of you guess (-1 is exit the game): ");
        int input = 0;
        scanf("%d", &input);
        if(input == -1)
        {
            if(money > 1000)
            {
                printf("\nYou win %4d dollars. Welcome at next time.\n", money - 1000);
            }
            else if(money < 1000)
            {
                printf("\nYou lose %4d dollars. Welcome at next time.\n", 1000 - money);
            }
            else if(money == 1000)
            {
                printf("\nYou do not win and do not lose. Goodbye~\n");
            }
            printf("------------------------End Game !------------------------\n");
            system("pause");
            return;
        }
        switch(compare(input, random))
        {
            case 0:
                printf("The number is smaller.\n\n");
                if(max_limit > input)
                {
                    max_limit = input;
                }
                else
                {
                    max_limit = max_limit;
                }
                money -= 100;
                break;
            case 1:
                printf("The number is larger.\n\n");
                if(min_limit < input)
                {
                    min_limit = input;
                }
                else
                {
                    min_limit = min_limit;
                }

                money -= 100;
                break;
            case 2:
                printf("Comgratulations, you get the number !\n\n");
                money += 200;
                random = rand() % (100 - 1 + 1) + 1;
                printf("-->Random = %d\n", random);
                max_limit = 100;
                min_limit = 1;
        }
        if(money == 0)
        {
            printf("Sorry, you do not have money. Welcome at next time.\n");
            printf("------------------------End Game !------------------------\n");
            system("pause");
            return;
        }
    }
}

int compare(int input, int random)
{
    if(input > random)
    {
        return 0;
    }
    else if(input < random)
    {
        return 1;
    }
    else if(input = random)
    {
        return 2;
    }
}