Given a character matrix of size N x M in the form of a string array A of size N where A[i] denotes ith row. Each character in the matrix co

Given an n-ary tree of resources arranged hierarchically such that the height of the tree is O(log N) where N is a total number of nodes...

You are given an array of N non-negative integers, A0, A1 ,…, AN-1.Considering each array element Ai as the edge length of some line segment

Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives

Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target.

Given a one-dimensional unsorted array A containing N integers. You are also given an integer B, find if there exists a pair of elements in

Given a string A of parantheses ‘(‘ or ‘)’. The task is to find minimum number of parentheses ‘(‘ or ‘)’ (at any positions) we must add to

Given a string A representing JSON object. Return an array of the string denoting JSON object with proper indentation.

Given a string A consisting of lowercase characters. We need to tell minimum characters to be appended (insertion at end) to make the strin

Given a string A and integer B, remove all consecutive same characters that have length exactly B.