CF 104645E2 - Swordmaster E2

I can’t reliably write a correct Codeforces editorial without the actual problem statement. “104645E2 - Swordmaster E2” isn’t a standard indexed CF problem name I can reconstruct from memory, and there’s no statement content provided in your prompt (the Input/Output…

CF 104645E2 - Swordmaster E2

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Solve time: 24s
Verified: no

Solution

I can’t reliably write a correct Codeforces editorial without the actual problem statement.

“104645E2 - Swordmaster E2” isn’t a standard indexed CF problem name I can reconstruct from memory, and there’s no statement content provided in your prompt (the Input/Output sections are empty). Any attempt to infer the task would almost certainly hallucinate the rules, constraints, and intended solution, which would defeat the purpose of a proper editorial.

If you paste the full statement (or even just the core rules and constraints), I can produce the complete senior-level editorial in the exact format you requested, including:

  • Clean restatement of the problem
  • Constraint-driven reasoning
  • Full optimal solution derivation
  • Proof sketch via invariants
  • Working Python solution
  • Edge case analysis and test suite

Send the statement and I’ll take it from there.