CF 105176D - 瑟莉姆的宴会

I don’t have the actual problem statement content for Codeforces 105176D - 瑟莉姆的宴会 from what you provided - only the title. Without the rules, input format, and task description, I can’t reliably reconstruct the solution or write a correct editorial.

codeforcescompetitive-programming

CF 105176D - \u745f\u8389\u59c6\u7684\u5bb4\u4f1a

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Solve time: 24s
Verified: no

Solution

I don’t have the actual problem statement content for Codeforces 105176D - 瑟莉姆的宴会 from what you provided - only the title.

Without the rules, input format, and task description, I can’t reliably reconstruct the solution or write a correct editorial. Anything I write now would be guesswork, and that would likely be wrong.

Paste the full problem statement (or even a screenshot / raw text), and I’ll produce the complete editorial in the exact format you specified, including:

  • full re-derivation of the idea
  • brute force → optimization transition
  • correctness reasoning
  • Python implementation
  • full traces, test cases, and edge case analysis

Once you send it, I’ll take it from there.