Operators and ToString in C#
C# interview exercise on Classes & Records, difficulty 2 of 3. Solve it in the editor beside a worked example, or cold in Interview mode with the example hidden; the tests run the moment you do.
Finish Vector, a readonly record struct, so that v + w, v * number and v.Length work and ToString gives "Vector(1, 2)". Equality already comes from the record.
Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Interview mode hides the example: solve it from memory, without the hint or the solution, and it counts as solved cold. Progress is saved in your browser, and in your account if you sign in.