Top 50 Dynamic Programming Practice Problems

Top 50 Dynamic Programming Practice Problems

Dynamic Programming is a method for solving a complex problem by breaking it down into a collection of simpler subproblems, solving each of those subproblems just once, and storing their solutions using a memory-based data structure (array, map,etc). Each of the subproblem solutions is indexed in some way, typically based on the values of its input parameters, so as to facilitate its lookup. So the next time the same subproblem occurs, instead of recomputing its solution, one simply looks up the previously computed solution, thereby saving computation time. This technique of storing solutions to subproblems instead of recomputing them is called memoization.

Here’s brilliant explanation on concept of Dynamic Programming on Quora — Jonathan Paulson’s answer to How should I explain dynamic programming to a 4-year-old?

Please find below top 50 common data structure problems that can be solved using Dynamic programming

1. Longest Common Subsequence | Introduction & LCS Length 最長的公共子序列
2. Longest Common Subsequence | Finding all LCS — Techie Delight 找到全部的最長公共子序列
3. Longest Common Substring problem — Techie Delight 最長公共子字符串
4. Longest Palindromic Subsequence using Dynamic Programming
5. Longest Repeated Subsequence Problem — Techie Delight 最長重複子序列問題
6. Implement Diff Utility — Techie Delight
7. Shortest Common Supersequence | Introduction & SCS Length
8. Shortest Common Supersequence | Finding all SCS — Techie Delight
9. Longest Increasing Subsequence using Dynamic Programming — Techie Delight
10. Longest Bitonic Subsequence — Techie Delight
11. Increasing Subsequence with Maximum Sum — Techie Delight
12. The Levenshtein distance (Edit distance) problem — Techie Delight
13. Find size of largest square sub-matrix of 1’s present in given binary matrix — Techie Delight
14. Matrix Chain Multiplication using Dynamic Programming
15. Find the minimum cost to reach last cell of the matrix from its first cell — Techie Delight
16. Find longest sequence formed by adjacent numbers in the matrix — Techie Delight
17. Count number of paths in a matrix with given cost to reach destination cell
18. 0–1 Knapsack problem — Techie Delight
19. Maximize the Value of an Expression — Techie Delight
20. Partition problem | Dynamic Programming Solution — Techie Delight
21. Subset Sum Problem — Techie Delight
22. Minimum Sum Partition Problem — Techie Delight
23. Find all N-digit binary strings without any consecutive 1’s — Techie Delight
24. Rod Cutting Problem — Techie Delight
25. Maximum Product Rod Cutting — Techie Delight
26. Coin change-making problem (unlimited supply of coins) — Techie Delight
27. Coin Change Problem (Total number of ways to get the denomination of coins) — Techie Delight
28. Longest Alternating Subsequence Problem — Techie Delight
29. Count number of times a pattern appears in given string as a subsequence
30. Collect maximum points in a matrix by satisfying given constraints — Techie Delight
31. Count total possible combinations of N-digit numbers in a mobile keypad — Techie Delight
32. Find Optimal Cost to Construct Binary Search Tree — Techie Delight
33. Word Break Problem | Dynamic Programming — Techie Delight
34. Word Break Problem | Using Trie Data Structure — Techie Delight
35. Total possible solutions to linear equation of k variables — Techie Delight
36. Wildcard Pattern Matching — Techie Delight
37. Find Probability that a Person is Alive after Taking N steps on an Island
38. Calculate sum of all elements in a sub-matrix in constant time — Techie Delight
39. Find Maximum Sum Submatrix in a given matrix — Techie Delight
40. Find Maximum Sum Submatrix present in a given matrix — Techie Delight
41. Find maximum sum of subsequence with no adjacent elements — Techie Delight
42. Maximum Subarray Problem (Kadane’s algorithm) — Techie Delight
43. Single-Source Shortest Paths — Bellman Ford Algorithm — Techie Delight
44. All-Pairs Shortest Paths — Floyd Warshall Algorithm — Techie Delight
45. Pots of Gold Game using Dynamic Programming — Techie Delight
46. Find minimum cuts needed for palindromic partition of a string
47. Maximum Length Snake Sequence — Techie Delight
48. 3-Partition Problem — Techie Delight
49. Calculate size of the largest plus of 1’s in binary matrix — Techie Delight
50. Check if given string is interleaving of two other given strings