Problem: Append Characters to String to Make Subsequence
Explore how to determine the minimum characters needed to append to one string to make another string its subsequence. Learn to implement a two-pointer method that efficiently matches characters with linear time complexity and constant space usage. This lesson helps you understand greedy string matching using C# for optimized subsequence problems.
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Statement
You are given two strings s and t, both composed entirely of lowercase English letters.
A subsequence of a string is a sequence of characters obtained by deleting zero or more characters from the string without changing the relative order of the remaining characters.
Determine the minimum number of characters that must be appended to the end of s so that t becomes a subsequence of s.
Constraints:
s.Length,t.Length...