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, and the last node in the linked list is the largest node of the current value. We link the root node with the value of 8, and the last node in the linked list is 10. Next, we traverse and convert the right subtree and link the root node with the smallest node of the right subtree. As for how to convert its left and right subtree, since the traversal and conversion process are the same, we naturally think of recursion.
Java
which point the last node in the list is 10. Then we go through the transformation of the right subtree, and link the root node with the smallest node in the right subtree. As to how to convert its Saozi right subtree, as the traversal and conversion process is the same, we naturally think of recursion.Java Code Implementation:/** * Enter a binary search
Convert a binary search tree into a sorted two-way linked listQuestion:Enter a binary search tree and convert it into a sorted two-way linked list.You must not create any new node. You only need to adjust the pointer point.10/\6 1
tree node is implemented as an inner class.[2] The program as far as possible to achieve a more practical two-fork search tree, including dynamic insertion, deletion, query the given keyword, the minimum keyword, the largest keyword; get binary tree sequence list (for sorti
, the value of all nodes on the left subtree is smaller than the value of its root node.(2) if its right subtree is not empty, the value of all nodes on the right subtree is greater than the value of its root node.(3) Its left and right subtree is also a binary sorting tree.The search code is as follows:
/** Find */Position Find (ElementType X, BinTree BST) {if (
Topic:Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:
The left subtree of a node contains only nodes with keys less than the node ' s key.
The right subtree of a node contains only nodes with keys grea
Zuozi or right subtree At the same time processing two fork tree to pay attention to the particularity of the root node at all times, consider */public void Treeinsert (Searchtree troot, Searchtree xnode) {Searchtree Ynode = Null;while ( Troot! = null) {Ynode = troot;//Avoid exiting the loop when Troot is null and cannot be accessed if (Xnode.key > Troot.key) {troot = Troot.right;} Else{troot = Troot.left;}} Xnode.parent = ynode;//Note the root node
value of the error, then wrong1 to the original node, wrong2 to the current node. If one is found again, only the wrong2 is changed.Note the relationship between the previous node pre and the current node cur, and the pre is only set to cur until cur is about to move to the right node. (Because cur to the left node is the first time to traverse the left subtree, only for the connection, the second traversal is output)The complete code is as follows:1
Topic:Elements of a binary search tree (BST) is swapped by mistake.Recover the tree without changing its structure.Note:A solution using O (n) space is pretty straight forward. Could you devise a constant space solution?test instructions and analysis: two point order of a binary
Topic:Implement an iterator over a binary search tree (BST). Your iterator is initialized with the root node of a BST.Calling would return the next smallest number in the next() BST.Note: next() hasNext() and should run in average O (1) time and uses O (h) memory, where H is the height of the Tree.test instructions and analysis: A
Two fork search tree basic OperationsThe number of nodes in the tree to determine whether the node is inserted into the empty tree to insert a new node in the Key-value tree if a key in the key return tree exists in the value valu
The content was last summer, but it never came true.In fact, it is the interval DP, to find a sequence to form a binary tree, the sequence of sequential traversal.The core is the same as the rest of the interval DP, which enumerates the intermediate values. Then the probability of the whole interval is summed up after enumeration, because it is equivalent to a deeper layer.Java
First, the summary Two forks the search tree is either an empty tree or a two-prong tree with the following properties:(1The Joz tree is not empty, then the value of all nodes on the left subtree is less than the value of its root node;(2If the right subtree is not empty, t
These two days are watchingAlgorithmThe optimal binary search tree in the introduction. for how to implement the dynamic planning of the optimal binary search tree, see Chapter 15th of Introduction to algorithms.
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