I believe we get puzzles randomly selected from a pool. Mine was about date parsing. Yours?
comparing two datafiles with suffled numbers to find matching pairs. all pairs have the same quotient. task was to find the quotient and return it as "improvement-ratio"
Can confirm they're both different from mine.
I got a palindrome problem.
Yep mine was summing the digits of a number until you reach a single digit number (eg 455 -> 5).