Weekly Payroll

問題

A payroll system treats every employee as an Employee with a WeeklyPay() method, and each kind of employee overrides it.

Each employee is written as:

salaried <annual>: earns annual / 52.
hourly <rate> <hours>: earns rate × hours for the first 40 hours and 1.5 × rate for every hour beyond 40.
commission <base> <rate> <sales>: earns base + rate × sales.

Implement weekly_payroll(employees).

employees: The employees. Numbers may have decimals.

Return the total weekly pay. Answers within 1e-6 are accepted.

0 ≤ number of employees ≤ 10,000

All numbers are between 0 and 10^7; hours ≤ 100

例 1

入力：
employees = ["salaried 52000", "hourly 20 45"]

期待される出力：
expected = 1950.0

入力：
std::vector<std::string> employees = {"salaried 52000", "hourly 20 45"};

期待される出力：
double expected = 1950.0;

入力：
string[] employees = new string[] {"salaried 52000", "hourly 20 45"};

期待される出力：
double expected = 1950.0;

The salaried employee earns 52000 / 52 = 1000. The hourly one earns 20 × 40 + 30 × 5 = 950. Total 1950.

例 2

入力：
employees = ["commission 300 0.1 2500"]

期待される出力：
expected = 550.0

入力：
std::vector<std::string> employees = {"commission 300 0.1 2500"};

期待される出力：
double expected = 550.0;

入力：
string[] employees = new string[] {"commission 300 0.1 2500"};

期待される出力：
double expected = 550.0;

300 + 0.1 × 2500 = 550.

まずは自分で考えてから、ヒントを 1 つずつ開いてみましょう。

ヒント 1

Handle each employee type with its own formula.

ヒント 2

Hourly pay is normal for the first 40 hours and 1.5 times the rate after that.

ヒント 3

Keep decimals: salaries divided by 52 rarely give whole numbers.

目安の計算量

O(number of employees) time, O(1) extra space

この課題はCodeUtility用に調整されています。上記の説明と制約に従ってください。