Minimum deletions required to make frequency of each letter unique Minimum deletions to make String S the Subsequence of any String in the Set D Count number of substrings of a string consisting of same characters Content removed for this article. Tags: #cpp-map-functions #Arrays #DSA #Greedy #Hash #Arrays #Greedy #Hash Minimum deletions to make String S the Subsequence of any String in the Set D Count number of substrings of a string consisting of same characters