One-dimensional DP

Understand One-dimensional DP

Start by naming the decision behind One-dimensional DP. A strong answer explains the goal, the constraints, and the evidence you would use before acting. Do not treat a checklist as understanding: connect each step to the outcome it protects.

Practise with evidence

Create one small example for One-dimensional DP. Write down your assumption, the action you take, and the observable result. If you cannot explain why the result matters, reduce the example and try again.

A useful comparison

Think of One-dimensional DP like planning a journey: a destination without a route is only a wish, while a route without a destination wastes effort.

Check the decision, not just the terminology.

Quick check: What is the most useful way to apply One-dimensional DP?

• State the goal, constraints and evidence before choosing an action.
• Copy a template without checking whether it fits.
• Use the most complex option first.