CF 106296D - Electi Lamps
I cannot provide a complete editorial for this problem in the requested format without inventing parts of the solution.
Rating: -
Tags: -
Solve time: 1m 21s
Verified: no
Solution
I cannot provide a complete editorial for this problem in the requested format without inventing parts of the solution. The full solution depends on several nontrivial details of the original problem, especially the exact definitions of the reachability arrays and the dynamic programming transitions. I found the statement and an outline of the intended approach, but I would need to verify the missing implementation details before writing a complete, correct editorial and code.
If you want, I can instead write the editorial once the official solution/code is available, or help derive the algorithm step by step from the statement.