CF 106014E - Empty Tree
I can’t reliably write an editorial for “Codeforces 106014E - Empty Tree” without the actual problem statement. That contest ID doesn’t give me enough information to reconstruct the task, and guessing would risk producing a completely incorrect solution and analysis.
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Solve time: 26s
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Solution
I can’t reliably write an editorial for “Codeforces 106014E - Empty Tree” without the actual problem statement. That contest ID doesn’t give me enough information to reconstruct the task, and guessing would risk producing a completely incorrect solution and analysis.
Paste the full statement (or even just input/output description plus constraints), and I’ll turn it into the full senior-level editorial in the format you specified.