My birthday is coming up and traditionally I’m serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. F of my friends are coming to my party and each of them gets a piece of pie. This should be one piece of one pie, not several small pieces since that looks messy. This piece can be one whole pie though. My friends are very annoying and if one of them gets a bigger piece than the others, they start complaining. Therefore all of them should get equally sized (but not necessarily equally shaped) pieces, even if this leads to some pie getting spoiled (which is better than spoiling the party). Of course, I want a piece of pie for myself too, and that piece should also be of the same size. What is the largest possible piece size all of us can get? All the pies are cylindrical in shape and they all have the same height 1, but the radii of the pies can be different.
One line with a positive integer: the number of test cases. Then for each test case:
• One line with two integers N and F with 1 ≤ N, F ≤ 10 000: the number of pies and
the number of friends.
• One line with N integers ri with 1 ≤ ri ≤ 10 000: the radii of the pies.
For each test case, output one line with the largest possible volume V such that me and my
friends can all get a pie piece of size V. The answer should be given as a floating point
number with an absolute error of at most 10^−3.
Poređao sam sve pite u prioritetni red implementiran preko heapa...
Podatak za prioritet mi je Zapremina pite/(Broj trenutnih usera pite + 1).
Zatim imam petlju koja se obrne onoliko puta koliko imam korisnika (zvanice + slavljenik) i u svakom trenutku piti sa vrha prioritetnog reda inkrementiram broj korisnika i gurnem na odgovarajuće mesto u heap.
Očigledno ono što se pri poslednjoj iteraciji nađe na vrhu heapa je i rešenje...
Ja sam program testirao za 20ak primera, i uvek je vratio tačno rešenje...
Da li neko ima ideju gde sam pogrešio?
call it pretensions but I got good intentions,
to keep my sanity, I'm hoping, fuck, there's gotta be
an answer to their strategies and their evil inventions... ~Looptroop