It also took me awhile to code the correct algorithm for B. I ended up with 60 lines of Python code, and 2 hours :/ All in all, this year's qualification round

It also took me awhile to code the correct algorithm for B. I ended up with 60 lines of Python code, and 2 hours :/ All in all, this year's qualification round is much easier than the last's. No real algorithmic challenges, just boring debugging.