You have chosen the categories for PPCG's "Best of 2017". We're going with 13 categories this year. Since all you amazing people have offered up a collective total of 9,000 rep in bounties, we can include all categories with a positive score. So here is what we'll do: I will post one community w...

Definition The rank of a word is defined as the position of the word when all the possible permutations (or arrangements) of its letters are arranged alphabetically, like in a dictionary, no matter if the words are meaningful or not. Let us consider these two words - "blue" and "seen". To begi...

Today in my statistics class, i found that some factorials can be simplified when multiplied together! For example: 5! * 3! = 5! *3*2 = 5! *6 = 6! Your job: Given a string containing only Arabic numbers and exclamation points, simplify my factorial to it's shortest possible string, in the ...

50 rep for Draw me a domino in Pip A challenge about domino pips needs a Pip solution! I will offer a 50-point bounty to the shortest Pip solution. Specifically: When the first Pip solution is posted, I will start a bounty on the question. At the end of the bounty period, I will award the boun...

Adjacent Room Number Finder I have come across an interesting problem solving technique at my job when given the wrong room number. Every now and then, while on the way to a meeting, a member on my team will send me the wrong room number, typically because they are in a rush at their desk and fa...