标签:put tor search turn bit array stat ring network
Serialization is the process of 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 just 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.
Note: Do not use class member/global/static variables to store states. Your serialize and deserialize algorithms should be stateless.
1 public class Codec { 2 public String serialize(TreeNode root) { 3 StringBuilder sb = new StringBuilder(); 4 serialize(root, sb); 5 return sb.toString(); 6 } 7 8 public void serialize(TreeNode root, StringBuilder sb) { 9 if (root == null) return; 10 sb.append(root.val).append(","); 11 serialize(root.left, sb); 12 serialize(root.right, sb); 13 } 14 15 // Decodes your encoded data to tree. 16 public TreeNode deserialize(String data) { 17 if (data.isEmpty()) return null; 18 Queue<String> q = new LinkedList<>(Arrays.asList(data.split(","))); 19 return deserialize(q, Integer.MIN_VALUE, Integer.MAX_VALUE); 20 } 21 22 public TreeNode deserialize(Queue<String> q, int lower, int upper) { 23 if (q.isEmpty()) return null; 24 String s = q.peek(); 25 int val = Integer.parseInt(s); 26 if (val < lower || val > upper) return null; 27 q.poll(); 28 TreeNode root = new TreeNode(val); 29 root.left = deserialize(q, lower, val); 30 root.right = deserialize(q, val, upper); 31 return root; 32 } 33 }
标签:put tor search turn bit array stat ring network
原文地址:https://www.cnblogs.com/beiyeqingteng/p/12254502.html