Dynamic Programming LeetCode Problems: 10 Solved in JS
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Dynamic Programming LeetCode Problems: 10 Solved in JS
7 просмотров · 5 дн. назад
CheatCoders
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7 просмотров · 5 дн. назад
Dynamic programming for beginners, explained step by step: learn dynamic programming with 10 LeetCode problems solved in JavaScript. For each DP problem we write brute force recursion, then memoization (top-down), then tabulation (bottom-up), and watch the DP table fill cell by cell. Every solution is run in Node 22 on LeetCode's official examples.
You'll learn what dynamic programming is (overlapping subproblems and optimal substructure), a 5-step recipe (state, recurrence, base case, memoization vs tabulation, space optimization), and the main LeetCode dynamic programming patterns: 1D DP, unbounded knapsack, 0/1 knapsack, grid DP, LIS and two-string DP. These come up often in coding interviews.
Chapters
0:00 Why dynamic programming?
0:41 What is DP?
2:16 The 5-step recipe
3:00 Problem 1: 70. Climbing Stairs
4:58 Problem 2: 198. House Robber
6:42 Problem 3: 322. Coin Change
8:32 Problem 4: 300. Longest Increasing Subsequence
10:19 Problem 5: 1143. Longest Common Subsequence
12:04 Problem 6: 62. Unique Paths
13:39 Problem 7: 64. Minimum Path Sum
15:14 Problem 8: 416. Partition Equal Subset Sum
17:17 Problem 9: 72. Edit Distance
19:02 Problem 10: 139. Word Break
20:34 Pattern cheat sheet
21:21 Recap
Problems (from LeetCode)
70 Climbing Stairs: https://leetcode.com/problems/climbin...
198 House Robber: https://leetcode.com/problems/house-r...
322 Coin Change: https://leetcode.com/problems/coin-ch...
300 Longest Increasing Subsequence: https://leetcode.com/problems/longest...
1143 Longest Common Subsequence: https://leetcode.com/problems/longest...
62 Unique Paths: https://leetcode.com/problems/unique-...
64 Minimum Path Sum: https://leetcode.com/problems/minimum...
416 Partition Equal Subset Sum: https://leetcode.com/problems/partiti...
72 Edit Distance: https://leetcode.com/problems/edit-di...
139 Word Break: https://leetcode.com/problems/word-br...
Problem names, one-line task quotes and example inputs and outputs are from LeetCode and are credited on screen. All code is original JavaScript (Node 22).
#dynamicprogramming #leetcode #javascript