Make sure you do the algorithm *yourself*, and practice, practice, practice until you get it with ease!
http://www.freecodecamp.com/challenge...
On this page of the site you can watch the video online [Walkthrough] - BINARY AGENTS | FCC intermediate algorithms with a duration of hours minute second in good quality, which was uploaded by the user CodeWithNick 11 May 2016, share the link with friends and acquaintances, this video has already been watched 606 times on youtube and it was liked by 17 viewers. Enjoy your viewing!