“Algorithms and data structures are topics that are the focus of so many of these interviews, and yet they are rarely necessary in real-world situations.

I constantly get stuck on technical programming interview questions unable to progress, is there a way that I can practice and actually get better? This question was originally answered on Quora ...

It covers basic algorithm design techniques such as divide and conquer, dynamic programming, and greedy algorithms. It concludes with a brief introduction to intractability (NP-completeness) .