CF 105971H - Vadim's Collection

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Solve time: 43s
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Solution

I’m missing the actual problem statement for Codeforces 105971H - Vadim’s Collection, so I can’t reliably write a correct editorial yet.

Right now only the title is present, but the entire solution structure depends on what “collection” refers to (arrays, graph, intervals, queries, etc.). If I guess, I’ll almost certainly build the wrong model and produce a misleading editorial.

Please paste the full problem statement (or at least the input/output format and constraints), and I’ll write the complete step-by-step editorial in the format you specified.