Preorder traversal pre[] = {1, 2, 4, 5, 3, 6} Output: Postorder traversal is {4, 5, 2, 6, 3, 1} A naive solution is to first construct the given tree, then recursively traverse it in post order. A better solution is to acheive this without having to construct the given tree...
/* 1. Construct the BST from the given sequence in a preorder fashion */ // stores index of the next unprocessed node in the sequence int index = 0; // set the root node's range as [-INFINITY, INFINITY] and recur Node* root = buildTree(seq, index, INT_MIN, INT_MAX); /* 2...
0103-Binary-Tree-Zigzag-Level-Order-Traversal/cpp-0103 0104-Maximum-Depth-of-Binary-Tree 0105-Construct-Binary-Tree-from-Preorder-and-Inorder Traversal/cpp-0105 0106-Construct-Binary-Tree-from-Inorder-and-Postorder Traversal/cpp-0106 0107-Binary-Tree-Level-Order-Traversal-II/cpp-0107 0108...
Full binary tree is a BST. Solution Approach A simple solution to the problem is to perform in-order traversal of the tree. And for each node of the tree, check if its subtrees are BST or not. At last return the size of the largest subtree which is a BST. Example ...
Given a binary tree and an integer k, count the total number of paths in the tree whose sum of all nodes is equal to k. The path can be any path that is on the root-to-leaf path in the binary tree, or it can be a direct path from the root to a leaf.
http://www.geeksforgeeks.org/check-if-a-given-binary-tree-is-sumtree/ 1 #include 2 #include 3 #include 4 #include 5 #include 6 #include 7 #include 8 u
Find the next greater element of the root element(arr[left]) in the array. Say the index isj If any element after thejthindex is less than the root element then returnfalseas it's not a valid preorder traversal representation to construct BST ...
Given a binary tree root and an integer target, delete all the leaf nodes with value target. Note that once you delete a leaf node with value target, if it’s parent node becomes a leaf node and has the value target, it should also be deleted (you need to continue doing that until ...
0104-Maximum-Depth-of-Binary-Tree 0105-Construct-Binary-Tree-from-Preorder-and-Inorder Traversal/cpp-0105 0105-Construct-Binary-Tree-from-Preorder-and-Inorder Traversal/cpp-0105 0106-Construct-Binary-Tree-from-Inorder-and-Postorder Traversal/cpp-0106 0106-Construct-Binary-Tree-from-Inorder-and-Po...
0102-Binary-Tree-Level-Order-Traversal 0104-Maximum-Depth-of-Binary-Tree 0105-Construct-Binary-Tree-from-Preorder-and-Inorder Traversal/cpp-01050106-Construct-Binary-Tree-from-Inorder-and-Postorder Traversal/cpp-01060107-Binary-Tree-Level-Order-Traversal-II/cpp-0107 ...