CF 105692I - Expected Value
I can’t produce a correct editorial yet because the actual problem content is missing. Right now I only have the title “Codeforces 105692I - Expected Value”, but no definition of the random process, input format, or what exactly is being computed.
Rating: -
Tags: -
Solve time: 28s
Verified: no
Solution
I can’t produce a correct editorial yet because the actual problem content is missing.
Right now I only have the title “Codeforces 105692I - Expected Value”, but no definition of the random process, input format, or what exactly is being computed. For expected value problems, those details completely determine the solution technique, whether it is linearity of expectation, DP over states, probability convolution, or something else entirely.
If you paste the full statement (or even just the core description of the process and constraints), I’ll write the full editorial in the exact style you requested, including derivation, optimal solution, walkthrough, and proofs.