how to code this problem: https://dmoj.ca/problem/2drmq
i mean that i dont understand the init function
can anyone explain?
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The init function is for you to prepare anything that could process the queries. Eg. a sparse table.
can you tell me more about the details?
See this article: https://codeforces.net/blog/entry/45485. It's a sparse table but with 2 layers.
adu orz
there's literally an editorial by wesley
can you give the link?
https://dmoj.ca/problem/2drmq/editorial
no i mean the coding detail not the algorithm