CF 102824E - Locked in the Past

I can write the editorial, but the actual problem statement for Codeforces 102824E “Locked in the Past” is missing from the prompt. The sections titled Problem Statement, Input, and Output are empty, and I could not reliably identify the problem from the title alone.

codeforcescompetitive-programming

CF 102824E - Locked in the Past

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Solution

I can write the editorial, but the actual problem statement for Codeforces 102824E “Locked in the Past” is missing from the prompt. The sections titled Problem Statement, Input, and Output are empty, and I could not reliably identify the problem from the title alone.

Please paste the full problem statement (including constraints and samples), and I’ll produce the complete editorial in the requested format with the algorithm explanation, proof, Python solution, tests, and edge cases.