CF 105584E - Colorful Residential Area

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Solve time: 29s
Verified: no

Solution

The editorial can’t be written yet because the actual problem content is missing from your prompt.

Right now, only the title “Colorful Residential Area” is provided, but there is no description of:

what the residential area looks like, what “colorful” means in the problem context, what operations or queries exist, or what needs to be computed. Without that, any solution would be a guess rather than a correct Codeforces editorial.

If you paste the full problem statement (or even just the input/output description and constraints), I can produce the complete editorial in the exact format you requested, including the full algorithm derivation, proof, implementation, and edge case analysis.