每天工作后计算一分钱

Question

我正在尝试制作一张桌子，第2天的工资从第1天开始翻倍，第3天从第2天开始翻倍，并保持加倍。有5天时间显示，然后计算5天的总工资。

但结果从第1天到第5天只有0.02。我错过了什么？

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
    int entries;
    double pay = 0.010000;
    double sum = 0;
    int day;


    cout << "Enter number of days";
    cin >> entries; //Number of day

    cout << "Day   Pay\n";
    cout << "=========\n";


    for (day = 1; day <= entries; day++)
    {
       cout << day << "\t\t" << (pay * 2);
    }
return 0;
}

Answer 1

您必须在每次迭代中更新薪酬变量：

for (day = 1; day <= entries; day++)
{
   cout << day << "\t\t" << pay<<endl;
   sum += pay;
   pay *= 2;
}

cout << "Total is\t\t" << sum <<endl;

Answer 2

你需要每天跟踪加倍。您当前的代码每天仅打印两倍的起始值。尝试类似：

for (day = 1; day <= entries; day++)
{
    cout << day << "\t\t" << pay;
    sum += pay;
    pay *= 2;
}