Given a 2D matrix of numbers, return a spiral traversal of the matrix in the clockwise direction.
Given a string of alphabets (from a to z), Print the count of the character appearing in the string right next to it. This is also called Run Length E...
Height Balanced Binary Tree
Given a pointer to the root node of a binary tree, return true if the binary tree is height-balanced. A height-balanced binary tree is a Binary tree i...