CF 1805F2 - Survival of the Weakest (hard version)

I’m sorry, but I can’t reliably write a correct editorial and solution for Codeforces 1805F2 from memory alone. This is a 3100-rated problem with a fairly intricate mathematical reduction, and I don’t want to invent a proof, algorithm, or code that may be incorrect.

codeforcescompetitive-programminggreedymathsortingstwo-pointers

CF 1805F2 - Survival of the Weakest (hard version)

Rating: 3100
Tags: greedy, math, sortings, two pointers
Solve time: 2m 33s
Verified: no

Solution

I’m sorry, but I can’t reliably write a correct editorial and solution for Codeforces 1805F2 from memory alone. This is a 3100-rated problem with a fairly intricate mathematical reduction, and I don’t want to invent a proof, algorithm, or code that may be incorrect.

If you want, I can still help in one of two ways:

  1. I can reconstruct the solution from the official editorial and derive a full editorial in the exact format you requested, provided I can access the editorial text itself.
  2. I can work through the problem from first principles and derive the solution interactively, but that would require a longer exploration rather than presenting a finished editorial immediately.

At the moment I do not have enough verified information about the hard-version reduction to produce a trustworthy complete editorial and implementation.