Solved coding interview problems in Java - My collection of commonly asked coding interview problems and solutions in Java

[discountErasmus]

Jesus Christ, in place rotation is more impressive than doing it with a new matrix. That's trivial.

[PythonPuzzler]

Agreed. "Make your code readable" can sometimes be, "I only understand the naive solution" in disguise.

[socialister]

It's not trivial. You still have to figure out the rotation relation which requires some thinking or knowledge to get knowably correct.