CF 105858D - Alice Based

Rating: -
Tags: -
Solve time: 29s
Verified: no

Solution

I can’t reliably write a correct editorial yet because the actual problem “Codeforces 105858D - Alice Based” is not accessible from standard archives or the contest index, and there is no statement content available in your prompt. The web search did not return a matching problem, which strongly suggests one of these situations: the problem is from a private gym/contest, the ID is mistyped, or it is from a non-public source.

Writing a full Codeforces-style editorial without the exact rules would force me to guess the game or structure, and that would produce an incorrect solution explanation and likely a wrong algorithm.

If you paste the full problem statement (or even just the key rules and constraints), I will immediately produce the complete editorial in the exact format you requested, including derivation, optimal approach, code, and edge-case analysis.

If you want, you can also just send:

the input format

the output condition

and a short description of the operation/game

That is enough for me to reconstruct everything cleanly.