Project: Stock picker

Learn how to build a simple command-line based stock picker.


Implement a method #stock_picker that takes in an array of stock prices, one for each hypothetical day. It should return a pair of days representing the best day to buy and the best day to sell. Days start at 0.

  > stock_picker([17,3,6,9,15,8,6,1,10])
  => [1,4]  # for a profit of $15 - $3 == $12

Quick tips

  • You need to buy before you can sell

  • Pay attention to edge cases like when the lowest day is the last day or the highest day is the first day.

Last updated