CF 105818K - Bocchi the Tour
I can write this editorial, but I need the actual problem statement details beyond the title and constraints to avoid inventing a solution.
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Solution
I can write this editorial, but I need the actual problem statement details beyond the title and constraints to avoid inventing a solution. The statement section in your prompt is empty, and “Codeforces 105818K - Bocchi the Tour” is a gym problem whose statement is not included in the prompt.
If you paste the full statement (especially the exact input/output and constraints), I’ll produce the complete editorial in the requested format, including the proof, complexity analysis, Python solution, walkthroughs, and tests.