Buy or Sell

Given a list of stock_prices in ascending order by datetime, and their respective dates in list dts, write a function max_profit that outputs the max profit by buying and selling at a specific interval and start and end dates to buy and sell for max profit.

Example:

Input:

stock_prices = [10,5,20,32,25,12]
dts = [
    '2019-01-01', 
    '2019-01-02',
    '2019-01-03',
    '2019-01-04',
    '2019-01-05',
    '2019-01-06',
]

def max_profit(stock_prices,dts) -> 27

Output:

def max_profit(stock_prices, dts) -> 
(27, '2019-01-02', '2019-01-04')