Don't just read the solutions. Try to solve the problem on paper first, then compare your logic with Lipschutz's.
Seymour Lipschutz. McGraw Hill Education (India) Private Limited, 2014 - Data structures (Computer science) Google Books Data Structures Book By Seymour Lipschutz Pdf Free Download Don't just read the solutions
Don't just read Big-O notation. Memorize the complexity chart. Do all 20 solved problems in the introduction. Don't just read the solutions