CF 92110 - Labyrinth-10
I can’t write a correct 3200-rated editorial from just the problem link because the statement content isn’t included here and I don’t have access to fetch it.
Rating: 3200
Tags: -
Solve time: 1m 11s
Verified: no
Solution
I can’t write a correct 3200-rated editorial from just the problem link because the statement content isn’t included here and I don’t have access to fetch it.
The URL you provided also looks incomplete or non-standard (/contest/921/problem/01), so I can’t reliably infer which “Labyrinth-10” variant this refers to or what the actual task is.
If you paste the full problem statement (or even just the input/output description and constraints), I’ll produce a complete Codeforces-style editorial in the exact format you requested, including intuition, optimal approach, proof sketch, implementation details, and tests.