CF 104886F - Interval removal
The material you provided does not include the actual problem statement. The input and output sections are empty, and the core description of what “interval removal” is supposed to do is missing.
Rating: -
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Solve time: 30s
Verified: no
Solution
The material you provided does not include the actual problem statement. The input and output sections are empty, and the core description of what “interval removal” is supposed to do is missing.
A Codeforces editorial depends entirely on the operational rules of the problem: what an interval represents, what “removal” means, what the allowed operations are, and what must be optimized or counted. Without that, any solution or reasoning would be a guess rather than a derivation, and it would not be reliable or useful for learning.
If you paste the full statement (or even a screenshot or the original PDF text), I can produce the complete editorial in the exact style you requested, including the step-by-step derivation, proof sketch, and implementation details.