CF 104147A - Round 1

I can write the full editorial in the format you want, but I’m missing the actual problem statement for Codeforces 104147A - Round 1.

CF 104147A - Round 1

Rating: -
Tags: -
Solve time: 29s
Verified: no

Solution

I can write the full editorial in the format you want, but I’m missing the actual problem statement for Codeforces 104147A - Round 1.

Right now the “Problem Statement / Input / Output” sections are empty, so anything I write would be guesswork, and that would defeat the purpose of a correct editorial.

Paste the full statement (or even a screenshot/text dump), and I’ll produce the complete editorial with:

  • clear re-derivation of the solution
  • brute force → optimal transition
  • full walkthrough and proofs
  • Python implementation
  • edge cases + asserts

Once you send it, I’ll match your formatting rules exactly.