CF 104355D - 点集扩张
The problem statement is missing from your prompt (it only shows the title “点集扩张” without any description, input, or rules). Without that, I can’t reliably reconstruct the task or produce a correct Codeforces-style editorial.
CF 104355D - \u70b9\u96c6\u6269\u5f20
Rating: -
Tags: -
Solve time: 30s
Verified: no
Solution
The problem statement is missing from your prompt (it only shows the title “点集扩张” without any description, input, or rules). Without that, I can’t reliably reconstruct the task or produce a correct Codeforces-style editorial.
If you paste the full statement (or even a screenshot / rough description), I’ll write the complete editorial in the exact format you requested, including the algorithm walkthrough, proof idea, code, and test cases.