Grofers Interview Experience for Fresher SDE - Intern, Nov 2020

You are given an integer ‘N’ , calculate and print the sum of :

LCM(1,N) + LCM(2,N) + .. + LCM(N,N) 

where LCM(i,n) denotes the Least Common Multiple of the integers ‘i’ and ‘N’.

Input Format:...

Given a binary tree, return the vertical order traversal of the values of the nodes of the given tree.

For each node at position (X, Y), (X-1, Y-1) will be it...