Олимпиада 1С, отборочный тур 2024-2025

5 problems from Олимпиада 1С, отборочный тур 2024-2025 (contest 105608), difficulty -. 5/5 solutions verified against sample I/O.

5 items

Олимпиада 1С, отборочный тур 2024-2025

Special | 5 problems | 5/5 verified | Difficulty - | 4m 4s

# Problem Rating Tags Accepted Time ✓
A \u0421\u0443\u043d\u0434\u0443\u043a \u0441\u043e\u043a\u0440\u043e\u0432\u0438\u0449 43s ✓
B \u0414\u0432\u0435 \u043c\u0438\u0448\u0435\u043d\u0438 50s ✓
C 4 \u0432 \u0440\u044f\u0434 50s ✓
D \u0414\u0432\u0430 \u0448\u0438\u0444\u0440\u0430 56s ✓
E \u0411\u0438\u043d\u0430\u0440\u043d\u044b\u0439 \u0443\u0440\u0430\u0432\u043d\u0438\u0442\u0435\u043b\u044c 45s ✓
Practice › Codeforces Solutions › Олимпиада 1С, отборочный тур 2024-2025 ›

CF 105608D - Два шифра

We are given two integers that represent a desired result of some hidden encoding process applied to a string of lowercase Latin letters.
codeforces competitive-programming Jun 22, 2026
Practice › Codeforces Solutions › Олимпиада 1С, отборочный тур 2024-2025 ›

CF 105608A - Сундук сокровищ

We are given a rectangular chest with three edge lengths $X$, $Y$, and $Z$. The chest can be oriented in any way, meaning any pair of its sides can become the “base” that tries to pass through a rectangular portal.
codeforces competitive-programming Jun 22, 2026
Practice › Codeforces Solutions › Олимпиада 1С, отборочный тур 2024-2025 ›

CF 105608E - Бинарный уравнитель

We are given a binary string consisting only of zeros and ones. In one operation, we take a pair of adjacent characters and apply a XOR-like rule to compress them into a single character according to simple local interactions.
codeforces competitive-programming Jun 22, 2026
Practice › Codeforces Solutions › Олимпиада 1С, отборочный тур 2024-2025 ›

CF 105608B - Две мишени

We are given two circular targets on a plane. Each target is defined by its center coordinates and a radius. From these two circles, we are asked to determine which of four “scores” from 0 to 3 are achievable, where each score corresponds to a geometric relation between the…
codeforces competitive-programming Jun 22, 2026
Practice › Codeforces Solutions › Олимпиада 1С, отборочный тур 2024-2025 ›

CF 105608C - 4 в ряд

The task is essentially a “what if” simulation on a Connect Four board. We are given a 6 by 7 grid that represents the current state of the game, where each cell can contain a red piece, another color, or be empty.
codeforces competitive-programming Jun 22, 2026