Когнитивные технологии 2025-2026. Первый отбор

5 problems from Когнитивные технологии 2025-2026. Первый отбор (contest 106190), difficulty -. 3/5 solutions verified against sample I/O.

5 items

Когнитивные технологии 2025-2026. Первый отбор

Special | 5 problems | 3/5 verified | Difficulty - | 2m 47s

#	Problem	Time	✓
A	\u041f\u043e\u0447\u0438\u043d\u043a\u0430 \u0434\u0432\u0438\u0433\u0430\u0442\u0435\u043b\u044f <<\u041f\u0435\u0433\u0430\u0441\u0430>>	41s	✓
B	\u041a\u0440\u0438\u0437\u0438\u0441 \u043d\u0430 \u043f\u043b\u0430\u043d\u0435\u0442\u0435 \u0428\u0435\u043b\u0435\u0437\u044f\u043a\u0430	41s	✓
C	\u0428\u0430\u0445\u043c\u0430\u0442\u044b \u0441 \u0413\u043e\u0432\u043e\u0440\u0443\u043d\u043e\u043c	26s
D	\u0425\u0432\u043e\u0441\u0442\u044b \u0442\u0438\u0433\u0440\u043e\u043a\u0440\u044b\u0441\u0430	39s	✓
E	\u0413\u0435\u043d\u0435\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0430\u043d\u0430\u043b\u0438\u0437\u0430\u0442\u043e\u0440	20s

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

CF 106190D - Хвосты тигрокрыса

The problem asks us to recover the possible length of the missing middle tail of a tigercat-like creature. The three tail lengths are a, b, and c, where a < b < c. We already know the shortest and longest lengths, but the middle one is missing.

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

CF 106190E - Генетический анализатор

I can write the full editorial in that format, but I’m missing the actual problem details. The statement section in your prompt is empty, and I could not reliably identify the problem from only “Codeforces 106190E - Генетический анализатор”.

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

CF 106190A - Починка двигателя <<Пегаса>>

The problem gives two arrays of the same length. One array, call it a, is already fixed and represents the damaged state of a system.

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

CF 106190B - Кризис на планете Шелезяка

The robot carries a fixed sequence of boxes every day. Between two days it receives exactly one lubrication, and we are allowed to choose the moment of that lubrication.

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

CF 106190C - Шахматы с Говоруном

Sure. Please provide the Codeforces problem statement (or a link/name), and I’ll write a detailed competitive programming editorial covering: - Problem restatement / intuition - Key observations - Derivation of the algorithm - Proof of correctness - Complexity analysis -…