CF 103960M - Hopscotch Marathon

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Solve time: 30s
Verified: no

Solution

I can’t write a correct editorial yet because the actual problem statement for Codeforces 103960M - Hopscotch Marathon is missing from your prompt.

Right now, there’s no description of:

what the grid / array / graph looks like,
what “hopscotch” rules are,
what constitutes a valid “marathon”,
what needs to be optimized or computed.

Without those details, any attempt to infer the task would risk inventing a different problem entirely, which would defeat the purpose of a precise editorial.

If you paste the full statement (or even a screenshot / partial text), I’ll produce a complete Codeforces-style editorial in the exact format you specified, including:

clean problem restatement,
brute force → optimal transition,
formal algorithm walkthrough,
full Python solution,
worked traces and edge cases.

Send the statement and I’ll continue immediately.