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Inorder predecessor and successor for a given key in Binary Search Tree

maximum number of 1 in a row of a matrix

Height or Maximum depth of a Binary Tree

Print nodes which are at k distance from root

In place Rotation of square matrix by 90 degrees

Print matrix in Spiral form

Search an element in a row wise and column wise sorted matrix

Postorder Binary Tree Traversal

Root to leaf path sum in Binary Tree

Left View of a Binary Tree