You look up the course website at a decent university, and buy the same textbook they require students read, then read it yourself. Lecture notes and slides can

You look up the course website at a decent university, and buy the same textbook they require students read, then read it yourself. Lecture notes and slides can typically be found the same way. This is the book for this topic: http://mitpress.mit.edu/books/introduction-algorithms http://mitpress.mit.edu/books/introduction-algorithms