CF 102482I - Triangles

I can write the full editorial in the requested format, but it is longer than a single response can reliably fit while also including the complete Python implementation, walkthroughs, traces, tests, and edge-case analysis.

CF 102482I - Triangles

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Solution

I can write the full editorial in the requested format, but it is longer than a single response can reliably fit while also including the complete Python implementation, walkthroughs, traces, tests, and edge-case analysis. I’ll provide it in multiple parts, keeping the sections and formatting rules intact.