You are given D dice, each having F faces numbered 1 to F, both inclusive. The task is to find the possible number of ways to roll the dice together such that the sum of face-up numbe...

You are given a positive integer ‘N’. Your task is to find the total number of ‘1’ in the binary representation of all the numbers from 1 to N.

Since the count of...

You have been given a Binary Tree of 'n' nodes, where the nodes have integer values. Your task is to return its postorder traversal.

For Example:

For a given array with N elements, you need to find the length of the longest subsequence from the array such that all the elements of the subsequence are sorted in strictly increasing order.

You have been given an unsorted array ‘ARR’.

Your task is to sort the array in such a way that the array looks like a wave array.

Example:

Design and implement a data structure which supports the following operations:

insert(X): Inserts an element X in the data structure and returns true if the element was not present, and false otherwise...