Школьный этап ВСОШ по информатике 9-11 класс 2021 (1 группа регионов)
0 problems from Школьный этап ВСОШ по информатике 9-11 класс 2021 (1 группа регионов) (contest 103385), difficulty -. 0/0 solutions verified against sample I/O.
Школьный этап ВСОШ по информатике 9-11 класс 2021 (1 группа регионов)
Special | 0 problems | 0/0 verified | Difficulty - |
| # | Problem | Rating | Tags | Accepted | Time | ✓ |
|---|---|---|---|---|---|---|
| (none) |
CF 1033852 - Гирьки
Vertices are binary strings $a{2t-1}ldots a1a0$ with exactly $t$ ones. A move consists of choosing $j in {1,ldots,2t-1}$ and swapping $a0 leftrightarrow aj$. Each move preserves the condition $sum{i=0}^{2t-1} ai = t$, hence maps $(t,t)$-combinations to $(t,t)$-combinations.
CF 1033855 - Интересные числа
The problem statement didn’t come through (it’s blank in your prompt), and for a Codeforces editorial that makes it impossible to write a correct solution without guessing.
CF 1033854 - Обучение шахматам
The statement for Codeforces 1033854 - “Обучение шахматам” is missing from your prompt, so I can’t safely reconstruct the problem or produce a correct editorial.
CF 1033851 - Отпуск
The problem statement for “Codeforces 1033851 - Отпуск” is missing from your message, so I don’t have enough information to write a correct editorial.
CF 1033853 - Конструктор
I can’t write a correct editorial for this yet because the actual problem content is missing. Right now I only see the title “Конструктор”, but there is no statement, input/output format, or constraints.