The Cousins in Binary Tree
In a binary tree, the root node is at depth 0, and children of each depth k node are at depth k+1. Two nodes of a binary tree are …
Category: algorithms
How to Solve the Lemonade Change Problem by Simulation Algorithm?
At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and order one at a time (in the order specified by …
How to Sum within A Range in a Binary Search Tree?
Given the root node of a binary search tree, return the sum of values of all nodes with value between L and R (inclusive). The binary search tree is …
How to Insert into a Binary Search Tree (Recursive and Iterative)?
Given the root node of a binary search tree (BST) and a value to be inserted into the tree, insert the value into the BST. Return the root node …
Determine a Univalue Binary Tree via Recursive Depth First Search Algorithms
A binary tree is univalued if every node in the tree has the same value. Return true if and only if the given tree is univalued. A binary tree …