You don't need to memorize the algorithm for, but if you haven't been exposed to those types of problems you will solve them much more slowly. Younger developer

You don't need to memorize the algorithm for, but if you haven't been exposed to those types of problems you will solve them much more slowly. Younger developers are more likely to have experience with more CS style problems than an older LOB developer who focuses more on writing clean testable code. I don't have an axe to grind in this as I am the younger developer in this situation.