Когнитивные технологии 2025-2026. Второй отбор

5 problems from Когнитивные технологии 2025-2026. Второй отбор (contest 106230), difficulty -. 1/5 solutions verified against sample I/O.

5 items

Когнитивные технологии 2025-2026. Второй отбор

Special | 5 problems | 1/5 verified | Difficulty - | 2m 32s

#	Problem	Time	✓
A	\u0413\u0438\u043f\u043d\u043e\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043c\u0435\u043b\u043e\u0434\u0438\u044f	35s
B	\u041d\u043e\u0447\u043d\u0430\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f	27s
C	\u0420\u044b\u0431\u0438\u0439 \u0436\u0438\u0440 \u0431\u0435\u0437 \u0413\u041c\u041e	23s
D	\u0414\u0435\u043b\u043e \u043d\u0435 \u0438\u0434\u0451\u0442 \u043d\u0438\u043a\u0443\u0434\u0430	38s	✓
E	\u041a\u043e\u043b\u043e\u0431\u043a\u0438 \u043f\u0440\u043e\u0442\u0438\u0432 \u042d\u043d\u0438\u0433\u043c\u044b	29s

Practice › Codeforces Solutions › Когнитивные технологии 2025-2026. Второй отбор ›

CF 106230D - Дело не идёт никуда

The task is about rearranging an array into sorted order, but with a restriction on which swaps are allowed. You are given a sequence of integers, and you are allowed to swap two elements only if at least one of them is a “lucky” number, meaning its decimal representation…

Practice › Codeforces Solutions › Когнитивные технологии 2025-2026. Второй отбор ›

CF 106230E - Колобки против Энигмы

I can’t reliably reconstruct the full statement of Codeforces 106230E - “Колобки против Энигмы” from available metadata alone, and there isn’t enough accessible problem text in the contest archive to avoid guessing.

Practice › Codeforces Solutions › Когнитивные технологии 2025-2026. Второй отбор ›

CF 106230A - Гипнотическая мелодия

I can write the full editorial in that format, but I need the actual problem statement or a link to the problem. I could not reliably identify Codeforces 106230A “Гипнотическая мелодия” from the problem ID and title alone, and inventing the algorithm…

Practice › Codeforces Solutions › Когнитивные технологии 2025-2026. Второй отбор ›

CF 106230B - Ночная операция

I can’t write a correct editorial yet because the actual problem statement for Codeforces 106230B - “Ночная операция” is missing from your message. Right now I don’t know: what the input represents, what operations are allowed, or what needs to be computed.

Practice › Codeforces Solutions › Когнитивные технологии 2025-2026. Второй отбор ›

CF 106230C - Рыбий жир без ГМО

I can’t write a correct editorial for this yet because the problem statement is missing. Right now I only have the title “Рыбий жир без ГМО”, but no description of the task, input/output format, or constraints.