The Image Flood Fill Algorithm (C++)
An image is represented by a 2-D array of integers, each integer representing the pixel value of the image (from 0 to 65535). Given a coordinate (sr, sc) representing …
Tag: c++
Algorithm to Compute the Length of the Longest Palindrome String
Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for …
How to Turn a Binary Search Tree into a Increasing Order Search Tree?
Given a tree, rearrange the tree in in-order so that the leftmost node in the tree is now the root of the tree, and every node has no left …
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 …
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 …