96. Unique Binary Search Trees

LeetCodeMathDynamic ProgrammingTreeBinary Search TreeBinary TreeOpen on judge ↗

Given an integer n, return the number of structurally unique BST's (binary search trees) which has exactly n nodes of unique values from 1 to n. Example 1: Input: n = 3 Output: 5 Example 2: Input: n = 1 Output: 1 Constraints: - 1 <= n <= 19

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solution.cppC++17

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