P08 — Stacks and queues

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What is inside

• 1. Why this matters
• 2. Which Java type to reach for
• 3. The four shapes that actually appear
• 4. The monotonic stack, in words
• 5. Java gotchas that cost marks
• 6. The two templates
• 7. Worked problems
• 8. Complexity
• 9. Traps checklist
• 10. Practice — 15 problems