Hello everyone.

I'm going to participate in APIO 2017 and so I decided to try to solve the problems of previous years but I wasn't able to solve them.

I didn't find any tutorial for the problems so I would like to ask you guys and gals to explain the solutions of the last year's problems.

Also I would like to know the intended solution for the 2nd subtask from problem boats and 2nd subtask from problem fireworks (not the solution that would get the whole problem just the one that would get this subtask).

Any solution provided will be appreciated;

Thank you for reading.

:)