Add Digit DP to gold

digit dp



Digit dp introduction:
USACO gold problem that uses this:

2021 February Contest, Gold: Count the Cows

This is late, but I wrote a book about DP ( which has a detailed explanation of Digit DP in addition to the solution to Count the Cows, as coconut mentioned.

This can probably be added to the guide :stuck_out_tongue:


Sheesh… Where did you find time to write that? We should add this to the guide lol (p good ngl)…

It looks cool! :smiley: