CF 1055181 - Площадь прямоугольника
The problem statement is not included in your message, so I don’t have the definition of the input format, output requirements, or even what exactly “Площадь прямоугольника” refers to in this specific task instance.
Rating: -
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Solve time: 31s
Verified: no
Solution
The problem statement is not included in your message, so I don’t have the definition of the input format, output requirements, or even what exactly “Площадь прямоугольника” refers to in this specific task instance.
Codeforces problems with this title usually fall into a few different variants, for example computing the area of an axis-aligned rectangle from coordinates, or reconstructing a rectangle from partial information, but writing a correct editorial requires knowing the exact input format and constraints. Even small differences, like whether coordinates are guaranteed to form a rectangle, whether sides are axis-aligned, or whether there are multiple test cases, completely change the solution and proof.
If you paste the full statement (or even just the input/output specification and constraints), I’ll produce the full structured editorial in the format you requested, including the algorithm derivation, correctness argument, worked traces, and test suite.