Master the 0-1 Knapsack problem with clean DP semantics and understand why backwards iteration is required in space-optimized solutions. Learn the snapshot mental model that transfers to other DP problems.
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Master LeetCode problem 96 using dynamic programming to count unique BST structures. Learn the elegant divide-and-conquer approach, understand Catalan numbers, and see how fixing the root node reveals recursive substructure in this classic combinatorial problem.
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Read article →Master Sudoku solving with JavaScript using backtracking and the MRV heuristic. Learn constraint satisfaction problem techniques with interactive visualization to see the algorithm in action.
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Read article →Master LeetCode 968: Binary Tree Cameras with a clear bottom-up strategy. Learn the state-based approach, interview-ready code, and step-by-step walkthroughs that ensure you understand both intuition and implementation.
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