Comment by Kleo Petrov on "How did you learn Data Structures? Can someone please recommend some nice books/resources on Data Structures and Algorithms?" | Hashnode
Notes on Data Structures and Programming Techniques (CPSC 223, Spring 2015) - fantastic notes by Professor James Aspnes, the Director of Undergraduate Studies of the Yale Computer Science Department, with interesting homework assignments that make you apply various data structures/methods to solve various problems. C language used. Free