Given a sorted array of integers, check if given key is present in it?
Delete a node from BST (Binary Search Tree) such that the resultant tree is also a BST.
Given two time values, generate the time difference string.
Given a binary tree, connect the sibling nodes at each level.
Given a sorted array of integers rotated k times, check if given key is present in it?
Given a stream of integers, find the largest K integers.
Given a budget amount B, calculate the maximum skill possible among employees with given skill and salary.