Equal Strings Solution Codechef

June Long Challenge 2022 Solution

Equal Strings Solution Codechef Given a string A of length N consisting of lowercase English alphabet letters. You are allowed to perform the following operation on the string A any number of times: Select a non-empty subsequence S of the array [1,2,3,…,N] and any lowercase English alphabet α; Change Ai​ to α for all i∈S. Find the minimum number of operations required to convert A into a given string B of length N consisting of lowercase English alphabet letters. … Read more