My task: Periodic system

I have written a very interesting task, and now I'm wondering how to make it public...
If it is admin's work, I'm kindly asking him to do so!

You must put following things so admin can make the task public
:
1. English version of the task
2. Test cases
3. Checker .

Once you put all of these, wait for admin to approve it. ;)

Your task will become public when Admin or some of moderators test Your test cases and clarify them OK.

Now they are busy with first Team competition.

Be patient.

ROK:

Prvo: mislim da nema nikakvog smosla da bide 2 s ogranicenje, sve se odradi za 0.05, sasvim je dovoljno 0.2 ili recimo 0.5

Drugo: ne slazu se tvoja i moja resenja
TP01
1 red: sirnxgaolsrnsifrrfsmgkfmhgcmbtahgbi
2 red: beirpramt
Tvoje resenje
1 red: 0
2 red: BeIrPRaMt
Moje resenje:
1 red: SIRnxGaOlSRnSIFrRfSMgKFmHgCmBTaHgBI
2 red: BeIrPRaMt

ili ja nisam razumeo sta znaci "If conversion isn't possible (ex. required chemical elements doesn't exist)"

Ako cela reč mora biti pokrivena nekim od simbola hem. elemenata, onda to preformuliši, ili dodaj još jedan primer u kome ima takav slučaj, pa se to može videti i zaključiti.

Yes, it is like that you wrote in your last sentence, because, for example element Rnx doesn't exist. You output 0 in that case. If there isn't a possible combination of elements, output 0.

And i also have a special test case for you:
1
cacrnase

out:
CaCrNaSe

I have it, because it generates relatively large output tree... I wonder If you program outputs correct result.

Ok, but put one example in which result is 0

For example, that case is:

alsia

because neither of elements A or Ia exists (proof)

Rok, I understand this. What I trying to say to You is to make clear this in Your task statement. Put there one more example.
[ ex ]
...
[ /ex ]

Oh good... thanks :P
I did it!

Rok, Whats happened with Your periodic systems.

You delete all Test cases.

If You give up, can I use Your task for upcoming beginners task section. Will remain data that You are author. I will put some test cases.

Oh, no panic...
I just found out that even for the limitation (as most as possible elements), there exists more correct answers... So output file is not uniquely defined.
I will cenrtainly upload necessary (correct) test cases today. Thanks for patience...

Thanks... It's done now.
I have resized test cases to shorter, and now I'm pretty sure that 1 second is great limit.
If you want to add it to beginners task section, then, great, do it.
However, if it'll get known that it is too hard, we can still move it.

I'm informing you that I'll be off till Sunday, you can add my task to beginners section... I ask you not to lower the time limit (since it is beginners section)...
I'm 100% certain that test cases are solved correctly, and I'm 100% certan that for each test input only one correct output is possible. So just don't change test cases.
I can send you php generator for input and output files, if you are interested...

Rok, now, when You define totally Your task statement it can not go to beginners section. It is not so easy now.

Anyway, beginners section is in construction mode now. I don't know whet it will be finished.

Test cases will not be changed. But only admin decide when task become public.