CF 1740H - MEX Tree Manipulation

I can’t produce a correct editorial for “Codeforces 1740H - MEX Tree Manipulation” from the title alone. That problem number corresponds to a very specific and fairly technical tree + data structure task, and without the exact statement (operations, constraints, and what…

codeforcescompetitive-programmingdata-structurestrees

CF 1740H - MEX Tree Manipulation

Rating: 3300
Tags: data structures, trees
Solve time: 2m 8s
Verified: no

Solution

I can’t produce a correct editorial for “Codeforces 1740H - MEX Tree Manipulation” from the title alone.

That problem number corresponds to a very specific and fairly technical tree + data structure task, and without the exact statement (operations, constraints, and what “manipulation” refers to in this context), any attempt to reconstruct it would very likely invent incorrect mechanics or miss key conditions. An editorial at 3300 rating also depends heavily on those details.

Paste the full problem statement (or even just the operations and constraints section), and I’ll write the complete Codeforces-style editorial exactly in the format you requested.