Given an array of words, print all anagrams together ? Input : arr = [‘cat’, ‘dog’, ‘tac’, ‘god’, ‘act’]
Output : ‘cat tac act dog god’

Given a string and a number k, find the k-th non-repeating character in the string. Consider a large input string with lacs of characters and a small character set. How to find the character by only doing only one traversal of input string?

Given an array of names of candidates in an election. A candidate name in the array represents a vote cast to the candidate. Print the name of candidates received Max vote. If there is tie, print a lexicographically smaller name.

Given an input string and a pattern, check if characters in the input string follows the same order as determined by characters present in the pattern. Assume there won’t be any duplicate characters in the pattern.

Given an ordered dict, write a programm to insert items in beginning of ordered dict.When it is required to insert the elements at the beginning of an ordered dictionary, the ‘update’ method can be used.

Given two numbers you: are required to check whether they are anagrams of each other or not in binary representation.

Given an array of n string containing lowercase letters. Find the size of largest subset of string which are anagram of each others. An anagram of a string is another string that contains same characters, only the order of characters can be different. For example, “abcd” and “dabc” are anagram of each other.

Given a sentence containing n words/strings. Remove all duplicates words/strings which are similar to each others.

Given a string and a number N, we need: to mirror the characters from the N-th position up to the length of the string in alphabetical order. In mirror operation, we change ‘a’ to ‘z’, ‘b’ to ‘y’, and so on.

Given an unsorted list of some: elements(may or may not be integers), Find the frequency of each distinct element in the list using a dictionary.