Package g0001_0100.s0096_unique_binary_search_trees

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    96 - Unique Binary Search Trees\.

    Medium

    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

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Integer numTrees(Integer n)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait