Tata Consultancy Services (TCS) Interview Experience for Experienced SDE - 1, Jan 2020

Given a string ’S’ consisting of lower case English letters, you are supposed to return the longest palindromic substring of ‘S’.

You are given a 2D matrix ‘ARR’ of size ‘N x 3’ having integers, where ‘N’ is the number of rows.

Your task is to find the smallest sum possible while taking one element from each row.