Not, of course. Collatz problem is a good counter-example.

When I try to approve, it shows me "Description cannot be approved, recent changes from related record must be merged first." So I can not approve it.

Approved.

For all, who writes, that description is too unclear. Maybe you know, there is a good tradition in russian (and I think, it isnt much depends from the country) olimpiadic programming - put a task description in a such joke and unclear manner. Try out any contest/task and you will see it :) In that case, to understand a formal task is a part of whole task. Anywhere, this cata has been solved by 57 users, and I think they have understanded what are they have to do. So, I guess, it will be not good idea to explain all formal description in details. Thow, you may post issues and minuses, but I think so.

Yeah, only 2 year (or near it) have passed from the time I published it, and now it is wellcomed :) I have seen your extreme varian of this cata, maybe try it if I will have time. But I was surprised, that some my other cata are not finished (and even not much tried`) yet :)

Done, on Groovy / Scala links above.

Where I must push a button to approve the forks, that is needed?

O, it is nice to see, that this my cata is wide-discussed and translated on many other languidges! I only hope, that my other catas (not only 2, that are approoved) will be such popular or ever be solved by anybody in near future - try they, they are interesting too :)

Nice Kata.

Nice Kata.

Can anyone explain me one thing - why terrible katas with mistakes are approoved but some good katas are still beta? Does site moderators and administrators wants sufficient amount of non-trivial katas with kyu 3-2-1 and higher? Why I cant see any kata higher than 1 kuy and only one 1 kyu (in Haskell)? I think, that if kata is interesting and complex - it was solved only by few members and cant be approoved status because dont takes sufficient up votes. That is why we have a tons of 7-8 kyu katas. Several times I publish 2 kata on this site. They have not mistakes in tests. But instead of solving, some members posting down votes and minor issues on not important things. This practice dont motivate me to publish another katas, and I think I'm not only one with such opinion.

Поздравляю! Насчет смешно-не смешно это все субъективно, каждому свое сложно. Но это же не Хаскельная ката, я правильно понимаю? Насчет Folding through a fixed point - мне тоже пришлось пару дней покрутить мозгами, но могу подсказать кое что, если интересно.
ЗЫ а вообще - решайте мои пару бета-кат, они вообще не на хаскел скорее а на алгоритмы. Хотя вам за них баллы не начислятся, но с другой стороны, я подозреваю, что они так навсегда и останутся бетами, тем более если их никто не будет решать... Замкнутый круг, короче :)

I correct the description. And what about I think - I think there are two kinds of members: who solves the kata and others, who dont solve it but posts minor issues and down votes. I solve several approved katas with mistakes it tests and I dont understand why they are approved but othersinteresting katas are still beta status. I publish the kata, it was solved not only by me - I think it is sufficient.

Yes, you are right. I just copy suggested description seen below and not veryfy it. But I think it dont make a problem in solution this easy kata.