Freecharge Interview ExperienceTop freecharge interview questionsS.NoInterview QuestionNumber of times candidates experienced this question in interviews1Subarrays with distinct elements48112Maximum possible difference of two subsets of an array47343Remove Minimum Characters so that Two Strings Become Anagrams45684Given an Array of Pairs Find all Symmetric Pairs in it37245Check if a given array contains duplicate elements within k distance from each other36806Count Substrings with equal number of 0s, 1s and 2s31067Sort a String According to Another String29278Check if all Rows of a Matrix are Circular Rotations of Each Other28889Find all pairs (a, b) in an array such that a % b = k270310Print all subarrays with 0 sum263711Insertion in a Binary Tree242912Replace two consecutive equal values with one greater231413Products of ranges in an array221814Convert a String that is Repetition of a Substring of Length K216815Find Largest d in Array such that a + b + c = d213116Mean of range in array205817Moser-de Bruijn Sequence204818K’th Largest element in BST using constant extra space193319Print modified array after multiple array range increment operations182520Print modified array after executing the commands of addition and subtraction174521Maximum Depth Of Binary Tree1648