CF 102591D - Nonsense
I can write the editorial, but I do not have a reliable derivation of the intended accepted algorithm for Codeforces 102591D - Nonsense from the information provided.
Rating: -
Tags: -
Solve time: 2m 39s
Verified: no
Solution
I can write the editorial, but I do not have a reliable derivation of the intended accepted algorithm for Codeforces 102591D - Nonsense from the information provided. The statement is enough to understand the task, but the key data-structure idea needed for an $O((n+q)\log n)$-type solution is not something I can reconstruct confidently without risking inventing an incorrect approach.
If you provide either the official editorial, an accepted solution, or even a hint about the intended technique (for example, divide and conquer, segment tree, offline processing, etc.), I can turn it into the full senior-style editorial you requested, including the proof, implementation details, complexity analysis, and tests.