[b20000]

all it means is that you repeatedly practiced a set of problems and solutions and are able to quickly reproduce them.

it does not mean you have the experience, creativity and insight to create something new and innovative.

[roland35]

Having done many coding interviews I can assure you there is more to it than memorizing a problem and solution. I don't see how asking someone who is applying for a software engineer job to do a miniature software engineering task is controversial!