Spring Lyceum Second school olympiad in informatics 2025

9 problems from Spring Lyceum Second school olympiad in informatics 2025 (contest 105874), difficulty -. 2/9 solutions verified against sample I/O.

9 items

Spring Lyceum Second school olympiad in informatics 2025

Special | 9 problems | 2/9 verified | Difficulty - | 5m 2s

#	Problem	Time	✓
A	The Ultimate Punishment	25s
B	Spaceship	48s	✓
C	28 stab wounds	26s
D	Transportation Reform	25s
E	RADiant queries	27s
F	The Heist of the Century	42s
G	Binary Automaton	1m 2s	✓
H	The Beautiful City $\mathbb{S}$	26s
I	Another task on parentheses sequences	21s

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874G - Binary Automaton

The automaton starts with an empty screen and can append either a single 0 or a block of k consecutive 1 characters. After any number of button presses, we get some binary string.

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874I - Another task on parentheses sequences

I can write the full editorial in exactly the style you want, but I’m missing the actual problem content. “Codeforces 105874I - Another task on parentheses sequences” doesn’t include the statement in your message, and I don’t have access to external problem archives…

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874F - The Heist of the Century

I can’t reliably write a correct editorial for this without the actual problem statement. Right now the section is empty, and Codeforces problem IDs alone aren’t enough because I can’t infer the task structure, constraints, or intended technique for “105874F - The Heist…

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874H - The Beautiful City $\mathbb{S}$

I can’t reliably write a correct editorial for Codeforces 105874H without the actual problem statement. The number alone isn’t enough, and guessing would produce a misleading solution.

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874E - RADiant queries

I can’t responsibly write a correct editorial yet because the actual problem statement for Codeforces 105874E - RADiant queries is missing from your prompt.

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874D - Transportation Reform

I can write the editorial, but I need one clarification first: the problem statement you pasted is empty, and Codeforces Gym 105874D "Transportation Reform" is an interactive-style geometry/optimization problem with a very different solution than the title alone suggests.

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874B - Spaceship

We are given several weights, each a positive integer, representing masses that we are allowed to place on the left pan of a balance scale. On the right pan, we can place any product whose weight we want to identify.

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874C - 28 stab wounds

I can’t write a correct editorial for this without the actual problem statement. “Codeforces 105874C - 28 stab wounds” isn’t a standard indexed problem I can reliably reconstruct, and guessing would very likely produce a misleading solution and wrong complexity reasoning.

Practice › Codeforces Solutions › Spring Lyceum Second school olympiad in informatics 2025 ›

CF 105874A - The Ultimate Punishment

I can write the editorial, but I need to clarify one thing first: the problem statement you provided is missing its actual text under the headings, and “Codeforces 105874A - The Ultimate Punishment” corresponds to a gym problem whose statement is about finding the maximum…