1) Sorting a list of words such anagrams are grouped together. (Soundhound.com)
Input: [‘abc’,’test’,’vac’, ‘bac’, ‘london’, ‘cba’, ‘cav’, ‘lon’, ‘pst’]
Output: [‘abc’, ‘bac’, ‘cba’, ‘vac’, ‘cav’, ‘london’, ‘test’, ‘lon’, ‘pst’]
2. Design Twitter algorithm to retrieve top 10 new feeds (Soundhound.com)