You could check out the following resources: 1. Coursera Algorithms I for formal university-style learning. See https://www.coursera.org/course/algs4partI http

You could check out the following resources: 1. Coursera Algorithms I for formal university-style learning. See https://www.coursera.org/course/algs4partI https://www.coursera.org/course/algs4partI 2. Algomation.com for visualising algorithms. See http://www.algomation.com/ http://www.algomation.com/ 3. http://bigocheatsheet.com/ http://bigocheatsheet.com/ for time/space complexities for the most common data structures & algorithms. 4. The book - Cracking the Coding Interview which goes through the questions that top companies like Google, Amazon, Microsoft ask during interviews. For their solutions, see https://github.com/gaylemcd/ctci https://github.com/gaylemcd/ctci Hope that helps in some ways.