Hi all,
I refer you to the following problem.
http://www.codeforces.com/contest/10/problem/E
I tried reading the codes of people who solved the problem, but the codes are pretty cryptic to me. Can someone please enlighten me? Thanks :)
I refer you to the following problem.
http://www.codeforces.com/contest/10/problem/E
I tried reading the codes of people who solved the problem, but the codes are pretty cryptic to me. Can someone please enlighten me? Thanks :)
But is there another way to solve this problem without prior knowledge? It gets a bit daunting if the only way to solve problems is to know some obscure formula beforehand :S
Or maybe, is there an intuitive way from which one can derive the algorithm?
Thanks in advance!