CF 105972D - Лекции в BOPEN SUIR
The statement for “Codeforces 105972D - Лекции в BOPEN SUIR” is not included here, and I don’t have enough information to reconstruct the problem reliably from the title alone.
CF 105972D - \u041b\u0435\u043a\u0446\u0438\u0438 \u0432 BOPEN SUIR
Rating: -
Tags: -
Solve time: 27s
Verified: no
Solution
The statement for “Codeforces 105972D - Лекции в BOPEN SUIR” is not included here, and I don’t have enough information to reconstruct the problem reliably from the title alone.
A correct editorial depends entirely on the actual rules of the task, especially what the input represents and what operation or optimization is required. Without that, any “solution” would be guesswork and would not serve the goal of a learnable, re-derivable explanation.
If you paste the full problem statement (or even just the input/output description and constraints), I’ll write the complete Codeforces-style editorial in the format you requested, including the full reasoning, algorithm derivation, and implementation details.