c语言抢红包小游戏

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main()
{
  while (1)
  {
    printf_s("请输入数字：\n");
    printf_s("1:抢红包\n");
    printf_s("2:退出程序\n");
    int a;
    scanf_s("%d", &a);
    if (a == 1)
    {
      printf_s("请输入数字：\n");
      printf_s("1:随机红包\n");
      printf_s("2:平均红包\n");
      int a;
      scanf_s("%d", &a);
      if (a == 1)
      {
        float a[25];//保存10个红包金额 ==a[0]不要了，为了显示第几个红包
        float total;//总金额
        printf_s("\t\t\t欢迎使用红包分发系统\n\n\n");
        printf_s("请输入红包的总额:\n");
        scanf_s("%f", &total);
        int num;//发出去num个红包
        printf("请输入红包的个数:(1~20之间)\n");
        scanf_s("%d", &num);
        float min = 0.01;//最小金额0.01元
        /*float max=0;//最大金额，金额未确定，先初始化为0 ===作业*/
        int i = 0, j;
        float t;//平均值
        float MAX = 0;
        float safe_total = 0;//跳跃值
        float sum = 0;//累计每次领取的红包金额
        srand(time(NULL));//随机种子，与rand是对配对的 每次执行的结果都不一样
        for (i = 1; i < num; i++)//循环领取红包 从1-9，共9份
        {
          t = total / (num - i + 1); //平均值 全是10元
          safe_total = t * 2;//获取跳跃值 20.00元
          a[i] = (rand() % (int)(safe_total * 100) + (int)min * 100) / 100.0 + min;//10.5
          total -= a[i];//发出去的剩下红包金额
          sum += a[i]; //领取的红包金额
          printf_s("\t\t第%d个红包有%0.2f元\n", i, a[i]);
          if (a[i] > MAX)
          {
            MAX = a[i];
            j = i;
          }
        }
        a[i] = total;
        printf("\t\t第%d个红包有%0.2f元\n\n\n\n", i, a[i]);
        if (total > MAX)
        {
          printf_s("\t\t第%d个同学是运气王,抢到了0.2f元的金额\n\n\n", num, total);
        }
        else
        {
          printf_s("\t\t第%d个同学是运气王,抢到了%0.2f元的金额\n\n\n", j, MAX);
        }
        system("pause");
        system("cls");
      }
      else
      {
        printf("请输入金额：\n");
        int price;
        scanf_s("%d", &price);
        printf("请输入红包个数：\n");
        int num;
        scanf_s("%d", &num);
        float a;
        a = price * (1.00) / num * (1.00);
        printf_s("每人应得到金额：%f\n", a);
      }
    }
    else break;
  }
  return 0;
}