有问题留言
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;
}
