Интернет-олимпиады, Сезон 2022-2023, Четвертая личная олимпиада

4 problems from Интернет-олимпиады, Сезон 2022-2023, Четвертая личная олимпиада (contest 104239), difficulty -. 4/4 solutions verified against sample I/O.

4 items

Интернет-олимпиады, Сезон 2022-2023, Четвертая личная олимпиада

Special | 4 problems | 4/4 verified | Difficulty - | 4m 29s

#	Problem	Time	✓
A	\u041b\u0430\u0431\u043e\u0440\u0430\u0442\u043e\u0440\u043d\u044b\u0435 \u0440\u0430\u0431\u043e\u0442\u044b	53s	✓
B	\u0421\u0438\u043c\u0443\u043b\u044f\u0442\u043e\u0440 \u0441\u0442\u0443\u0434\u0435\u043d\u0442\u0430	1m 13s	✓
C	\u041a\u0443\u0431\u043a\u0438	55s	✓
D	\u0414\u043e\u0441\u0442\u0443\u043f \u043a \u0441\u0435\u0440\u0432\u0435\u0440\u0443	1m 28s	✓

Practice › Codeforces Solutions › Интернет-олимпиады, Сезон 2022-2023, Четвертая личная олимпиада ›

CF 104239D - Доступ к серверу

We are given a long array b that contains, somewhere inside it, a hidden structure built from two parts glued together: a key segment of length q, followed immediately by an encrypted version of a known array a of length m. The encryption is very structured.

Practice › Codeforces Solutions › Интернет-олимпиады, Сезон 2022-2023, Четвертая личная олимпиада ›

CF 104239B - Симулятор студента

We start from the origin on an infinite grid and want to reach a fixed target cell at coordinates $(x, y)$. Each basic action moves the character by one unit in one of the four cardinal directions, and each such action costs one button press.

Practice › Codeforces Solutions › Интернет-олимпиады, Сезон 2022-2023, Четвертая личная олимпиада ›

CF 104239C - Кубки

We are given two sequences of integers, each representing the order of trophies on two separate shelves. Within each shelf, all values are distinct, but the same value may appear in both shelves.

Practice › Codeforces Solutions › Интернет-олимпиады, Сезон 2022-2023, Четвертая личная олимпиада ›

CF 104239A - Лабораторные работы

The semester is modeled as a single continuous timeline of days. Each laboratory occupies a consecutive block of days, and these blocks do not overlap. If the first lab lasts $a1$ days, then it spans days $1$ through $a1$.