Hi codeforces.

I tried to solve this problem and for my interest I wrote the same problem in Java and after this in C++.

And this are the results :

Java = 1092ms;

C++ = 421ms;

So C++ is ~ 2,5 faster than Java, so this difference can make you win or lose a problem during the contest.

Maybe I make something wrong in Java and Java is faster than I think? So I have few day since I start to solve in Java ,hope to receive from you good hints for making my Java program run faster.