[mr90210]

I've got at home "Introduction to Algorithms - Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, Clifford Stein"

It's chunky and very academic book. I read it mostly when I have to interview.

From my observation, I improve at algorithmic problem-solving every time I study the fundamentals:

- Time complexity / Space complexity: In order to measure the efficiency of an algorithm

- Sort and Search algorithms

- Data structures

Over time for lack of practice I get less good at it, but because I've got the resources, I can always "get in shape" so to speak.