Algorithms are the heart and soul of computer science. They are indispensable, they are everywhere - from network routing and genomics calculations to cryptography and machine learning. A "perfect algorithm" will turn you into a real pro who will set tasks and skillfully solve them both in life and at an interview when hiring for any IT company. You will learn a few incredibly fast subroutines for processing data and several useful structures for organizing data that can be used directly in your own programs. Implementing and applying these algorithms will expand improve your programming skills.