Winter Cup 7.0 Online Mirror Contest

12 problems from Winter Cup 7.0 Online Mirror Contest (contest 105775), difficulty -. 2/12 solutions verified against sample I/O.

12 items

Winter Cup 7.0 Online Mirror Contest

Special | 12 problems | 2/12 verified | Difficulty - | 7m 17s

# Problem Rating Tags Accepted Time ✓
A Alibaba and Forty Thieves 46s ✓
B Bad Sindibad 33s
C The Tale of the Magical Lantern Grid 30s
D Max Diversity, No Superiority 27s
E Swap Task 25s
F Fawanis Ramadan 1m 57s
G Guess The Permutation 28s
H Hamming Guess 39s ✓
I Vanishing Island 25s
J Rock Paper Scissors 24s
K Yet Another Swap Task 24s
L Maze Chase 19s
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775F - Fawanis Ramadan

Got it. Please provide the Codeforces problem statement (or at least the link / full text), and I’ll write a complete competitive programming editorial. If you want a specific style, tell me too-e.g.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775L - Maze Chase

Sure. Please provide the Codeforces problem statement (or at least the problem name, link, constraints, and examples), and I’ll write a detailed competitive programming editorial. I’ll structure it like a typical Codeforces editorial: 1. Problem Restatement 2.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775K - Yet Another Swap Task

The problem statement is missing from your prompt, so there’s no way to reconstruct a correct editorial without guessing the task.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775J - Rock Paper Scissors

Sure. Please provide the Codeforces problem statement (or a link, problem name, and constraints), and I’ll write a detailed competitive programming editorial covering: - Problem restatement and observations - Key idea / intuition - Proof of correctness - Algorithm -…
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775I - Vanishing Island

I don’t have the actual statement for Codeforces 105775I - Vanishing Island in the prompt (the problem content sections are empty), so there’s nothing concrete to base the editorial on yet.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775H - Hamming Guess

This is an interactive problem where the judge hides a number of golden coins, represented as an integer from 1 to 10^9. Your program can repeatedly propose a number, and the judge answers with the Hamming distance between the proposed number and the hidden number.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775G - Guess The Permutation

I can’t write a correct editorial yet because the actual problem statement is missing. Right now I only see the title “105775G - Guess The Permutation”, but there are no rules describing: - what interaction or input format is given - what operations are allowed (queries…
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775E - Swap Task

Sure. Please provide the Codeforces problem statement (or at least the problem name, constraints, and examples), and I’ll write a detailed competitive programming editorial. I can structure it like a typical Codeforces editorial: 1. Problem Restatement 2. Key Observations 3.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775D - Max Diversity, No Superiority

I’m missing the actual problem statement for Codeforces 105775D - Max Diversity, No Superiority. Right now only the title is provided, and there’s no information about what the input/output means or what “diversity” or “superiority” refer to in this context.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775A - Alibaba and Forty Thieves

The problem works with a main array, and a stream of additional arrays that we store over time. Later, we receive queries that ask us to compare a subarray of the main array against all stored arrays, but the comparison is not positional.
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775B - Bad Sindibad

I can write the full editorial, but the problem statement you provided is missing the actual shape image. For Codeforces 105775B - Bad Sindibad, the exact polyomino shape is essential because the entire solution depends on the possible placements and the state transitions in…
codeforces competitive-programming Jun 25, 2026
Practice › Codeforces Solutions › Winter Cup 7.0 Online Mirror Contest ›

CF 105775C - The Tale of the Magical Lantern Grid

The problem statement for Codeforces 105775C - The Tale of the Magical Lantern Grid is missing from your prompt, so I can’t reconstruct the solution or write a correct editorial without risking inventing details.
codeforces competitive-programming Jun 25, 2026