Here's how to get the most from this material.
Active learning: Don't just read solutions. Solve problems first. Time yourself at minutes. Explain your thinking out loud.
Spaced repetition: Review problems after day, week, month. If you can't solve it quickly again, you haven't internalized it.
Pattern recognition: Each section teaches patterns. When you see a new problem, ask "which pattern applies?"
Mock interviews: Practice with another person. Use a timer and blank doc. Get feedback on communication.
Consistency beats intensity. hour daily beats hours on weekends.