Package g0401_0500.s0449_serialize_and_deserialize_bst

Class Codec

java.lang.Object
g0401_0500.s0449_serialize_and_deserialize_bst.Codec
public class Codec extends java.lang.Object
449 - Serialize and Deserialize BST.

Medium

Serialization is converting a data structure or object into a sequence of bits so that it can be stored in a file or memory buffer, or transmitted across a network connection link to be reconstructed later in the same or another computer environment.

Design an algorithm to serialize and deserialize a binary search tree. There is no restriction on how your serialization/deserialization algorithm should work. You need to ensure that a binary search tree can be serialized to a string, and this string can be deserialized to the original tree structure.

The encoded string should be as compact as possible.

Example 1:

Input: root = [2,1,3]

Output: [2,1,3]

Example 2:

Input: root = []

Output: []

Constraints:

  • The number of nodes in the tree is in the range [0, 104].
  • 0 <= Node.val <= 104
  • The input tree is guaranteed to be a binary search tree.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Codec()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    TreeNode
    deserialize(java.lang.String data)
     
    java.lang.String
    serialize(TreeNode root)
     

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Codec

      public Codec()

  • Method Details

    • serialize

      public java.lang.String serialize(TreeNode root)

    • deserialize

      public TreeNode deserialize(java.lang.String data)