c - 我认为递归在我头顶上运行

Question

我创建了这个简单的程序来模拟股票市场的投资，我创建这个程序的主要意图是，

• 如果我在市场上亏损，那么我将以初始投资的 x 倍再次投资（尽管我 + 必须从键盘手动进行），如果我再次亏损，我将投资 x 倍之前的投资；我会这样做，直到我没有赢回来。

那么 x 的 Value 应该是多少才能在最后一次大赢中获得丰厚的利润呢？

• 假设:: 如果赢了，我将赢得之前投资的两倍。

数学上:: 说连续输了 3 场，赢了 4 场。（x=2）

• 设初始投资为 $1，第二个 2 * $1= $2，第三个 2 * $2= $4；[全3输]

  第 4 笔投资 =2 * $4 = $8；[最终获胜] 总投资=$1+$2+$4+$8 =$15

• 总赢额= 2*$8 = %16 ；（根据上述假设）

  利润 = 1 美元。

但是 C 中的递归让我很吃惊，我无法处理它。请帮帮我。

代码：

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

int deposit;
int value;

int RandomNumber(int lower, int upper) //this function will act as unpredectable behavior of Market.
{
    int num = (rand() %
               (upper - lower + 1)) +
              lower;
    return num;
}

int Market(int value)
{
    int MarketBehaviour;
    if (value <= 0)
    {
        printf("Invalid fund....\n");
        Invest();   //It will let me Put value again if i entered wrong value.
    }
    else if (value > 0 && value <= deposit)
    {

        srand(time(0));
        MarketBehaviour = RandomNumber(0, 1);
        if (MarketBehaviour == 1) // 1 represents won in Investment
        {
            printf("## TradeResult::Won ## \n\n");
            deposit = deposit - value + value * 2;
            printf("Total left in Deposit:: $%d\n", deposit);
        }
        else // else,in this case 0,represents loss in Investment.
        {
            printf("## TradeResult::Loss ##\n\n");
            while (MarketBehaviour == 0 && deposit >= value)
            {

                deposit = deposit - value;

                printf("Total left In Deposit:: $%d \n", deposit);
                printf("Investment in Current Stage:: $%d \n", value);
                Invest(); //this function will let me invest again if i loss.
            }
        }
    }
}
int Invest()
{
    printf("Enter value to Invest from deposit:: $");
    scanf("%d", &value);
    Market(value);
}

int main()
{
    printf("Enter money to deposit:: $");
    scanf("%d", &deposit);
    printf("\n");
    Invest();
}

输出：

        try.c: In function 'RandomNumber':
        try.c:28:16: warning: implicit declaration of function 'rand'; did you mean 'rewind'? [-Wimplicit-function-declaration]
             int num = (rand() %
                        ^~~~
                        rewind
        try.c: In function 'Market':
        try.c:40:9: warning: implicit declaration of function 'Invest' [-Wimplicit-function-declaration]
                 Invest(); //It will let me Put value again if i entered wrong value.
                 ^~~~~~
        try.c:45:9: warning: implicit declaration of function 'srand'; did you mean 'scanf'? [-Wimplicit-function-declaration]
                 srand(time(0));
                 ^~~~~
                 scanf
    
    Enter money to deposit:: $100 
    
    Enter value to Invest from deposit:: $1
    ## TradeResult::Loss ##
    
    Total left In Deposit:: $99
    Investment in Current Stage:: $1
    Enter value to Invest from deposit:: $2
    ## TradeResult::Won ## 
    
    Total left in Deposit:: $101   (In my knowlodge , program was supposed to stop here)
    Total left In Deposit:: $100
    Investment in Current Stage:: $1
    Enter value to Invest from deposit:: $4
    ## TradeResult::Won ## 
    
    Total left in Deposit:: $104
    Total left In Deposit:: $103
    Investment in Current Stage:: $1`
    Enter value to Invest from deposit:: $ 

标签： crecursion