CF 102904J - Черные и белые
The problem statement for Codeforces 102904J (“Черные и белые”) is not included in your prompt, so I cannot safely reconstruct the full editorial yet.
CF 102904J - \u0427\u0435\u0440\u043d\u044b\u0435 \u0438 \u0431\u0435\u043b\u044b\u0435
Rating: -
Tags: -
Solve time: 32s
Verified: no
Solution
The problem statement for Codeforces 102904J (“Черные и белые”) is not included in your prompt, so I cannot safely reconstruct the full editorial yet. A correct solution depends entirely on the exact rules of how black and white interact, and guessing would very likely produce a wrong algorithm.
Please paste the full statement (or even just the key rules and input format), and I will write the complete editorial in the exact Codeforces style you requested, including the full algorithm derivation, proofs, implementation, and test suite.