CF 103076J - Impress your friends

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Tags: -
Solve time: 28s
Verified: no

Solution

I’m missing the actual problem content, so I can’t reliably derive the solution or write a correct editorial.

Right now you’ve provided only the template and metadata for “103076J - Impress your friends”, but the Problem Statement / Input / Output sections are empty. Without those, any attempt to reconstruct the task would be guesswork, and that would inevitably produce a wrong solution and misleading editorial.

If you paste the full statement (even a screenshot or raw text is fine), I’ll produce the complete Codeforces-style editorial exactly in your requested format, including:

clean restatement of the problem
constraint-driven reasoning
brute force → optimal transition
formal algorithm walkthrough
correct Python solution
traces, edge cases, and complexity analysis

Send the statement and I’ll continue from there.