This is a collection of coding patterns I have learned to solve not only some of the most common problems, but the 14 patterns (yes, there are way more than 14, but the point here is taking 6 months of preparation and condensing it into a 30 minute read that would not take more than 1-2 weeks to master. I have found these problems and patterns to be the most useful in that the data structures and algorithms are used in many other problems and become familiar over time. Good luck!
Please feel free to comment if you got some value or find any errors!
Thanks!