Solution: Distinct Subsequences
Understand how to use dynamic programming to calculate the number of distinct subsequences in a string that match another string exactly. This lesson teaches space optimization techniques by reducing a 2D DP approach to a 1D array while preserving order constraints, and covers the time and space complexity analysis.
We'll cover the following...
We'll cover the following...
Statement
Given two strings, s and t, determine how many distinct subsequences of s match t exactly.
Note: A subsequence is formed by deleting zero or more characters from s without changing the relative order of the remaining characters.
You may assume the result will always fit within a
Constraints:
s.length,t.length...