Given two sequences X and Y, we want to find Z i.e., the longest common subsequence (LCS) of both X and Y. Because we know that subsequences of interest are of length >= a and <= b, we threshold the LCS definition to |Z| in [a, b] (where |Z| is the sequence length).In python state the recursive formula for this problem. Implement the algorithm with bottom-up approach dynamic programming and backtracking. Create an iterative function that prints the longest common subsequence(LCS).

Answer :- def lcs(X, Y, a, b):L = [[0 for x in range(b+1)] for x in range(a+1)]for i in…

Answered: In python state the recursive formula…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Given two sequences X and Y, we want to find Z i.e., the longest common subsequence (LCS) of both X and Y. Because we know that subsequences of interest are of length >= a and <= b, we threshold the LCS definition to |Z| in [a, b] (where |Z| is the sequence length).

In python state the recursive formula for this problem. Implement the algorithm with bottom-up approach dynamic programming and backtracking. Create an iterative function that prints the longest common subsequence(LCS).

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