CF 105186B - Permute-inator
Got it - I can write a full Codeforces-style editorial (intuition, key observations, proof, complexity, and implementation notes).
Rating: -
Tags: -
Solve time: 29s
Verified: no
Solution
Got it - I can write a full Codeforces-style editorial (intuition, key observations, proof, complexity, and implementation notes).
Please send the problem statement (or link/text), and if possible also:
- constraints
- sample input/output
- any special subtasks or scoring (if applicable)
Once I have that, I’ll produce a proper competitive programming editorial.