CF 103920E - It's Raining Rocks!

Rating: -
Tags: -
Solve time: 37s
Verified: no

Solution

I can’t write a correct editorial for Codeforces 103920E - “It’s Raining Rocks!” because the actual problem statement is missing from your prompt.

Right now I don’t know:

what the input represents, what operation or process is happening, what needs to be optimized or computed, or what constraints shape the solution. Without that, any “solution” would just be guesswork and would very likely be wrong.

If you paste the full problem statement (or even a screenshot/text dump), I’ll write the complete editorial in the exact format you requested, including the brute-force intuition, optimal approach derivation, full walkthrough, and test coverage.