CF 105719A - OGD
I don’t actually have the statement of Codeforces 105719A - OGD available in the prompt or in the search results, so I can’t safely reconstruct the solution yet.
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Solve time: 29s
Verified: no
Solution
I don’t actually have the statement of Codeforces 105719A - OGD available in the prompt or in the search results, so I can’t safely reconstruct the solution yet. Anything I write now would be guesswork, and for Codeforces editorials that would almost certainly become incorrect or misleading.
If you paste the full problem statement (or even just input/output description plus constraints), I’ll immediately produce a complete, properly structured editorial in the exact style you requested.
Once you share it, I’ll make sure the solution is derived cleanly from first principles and not just “pattern matched,” so the reasoning stays reusable for similar problems.