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Challenge: Longest Palindromic Subsequence

Explore how to determine the length of the longest palindromic subsequence within a given string. Understand the problem definition and constraints, then apply dynamic programming strategies to design and implement an efficient solution. This lesson builds your skills in analyzing and coding complex algorithmic problems common in technical interviews.

Problem statement

Given a string, find the length of its longest palindromic subsequence. In a palindromic subsequence, elements read the same, backward and forward.

A ...