What is Dynamic Programming?
Dynamic Programming is an approach to solve complex problems by breaking them down into smaller sub-problems, storing the results of these sub-problems, and reusing them to enhance computational efficiency.
The process of storing the result of a sub-problem is called Memoization.
Characteristics
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Reusing Results: It stores the results of a problem once calculated and reuses them, preventing duplicate computations. -
Optimizing Sub-Problems: The optimal solution of a large problem is composed of the optimal solutions of its sub-problems.
What is Divide and Conquer?
Divide and Conquer is a strategy that solves a problem by dividing it into smaller sub-problems, solving each independently, and combining their solutions to solve the overall problem.
Characteristics
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Divide: Breaks the large problem into smaller ones. -
Conquer: Solves each small problem independently. -
Combine: Combines the solutions of the smaller problems to solve the overall problem.
Differences
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Redundancy of Problems: Dynamic Programming is efficient in solving overlapping sub-problems. In contrast, Divide and Conquer is more effective when sub-problems do not overlap. -
Memory Usage: Dynamic Programming uses additional memory to store computed results. However, Divide and Conquer generally doesn't require such storage.
Lessons in this chapter · Practical Python Algorithms
- 1. Advanced Python Algorithms
- 2. What is a Recursive Call?
- 3. Implementing Fibonacci Sequence with Recursive Function
- 4. Fill-in-the-blank quiz
- 5. Coding Quiz - Fibonacci Sequence
- 6. Dynamic Programming and Divide and Conquer
- 7. Implementing Dynamic Programming in Python
- 8. Multiple-choice quiz
- 9. Coding Quiz - Make One
- 10. What is Merge Sort?
- 11. Implementing Merge Sort
- 12. Multiple-choice quiz
- 13. Coding Quiz - Sort a List Using Merge Sort
- 14. What is Quick Sort?
- 15. Implementing Quick Sort in Python
- 16. Multiple-choice quiz
- 17. Coding Quiz - Sort a List Using Quick Sort
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