LeetCode Daily Challenge 214 | Shortest Palindrome | Today POTD | Python C++ Solution | CodeFod

Welcome to today's LeetCode Daily Challenge (POTD) — Problem 214: Shortest Palindrome. In this video, I cover both KMP and non-KMP solutions using Python and C++.
Problem name: 214. Shortest Palindrome
Problem Description:
You are given a string s. You can convert s to a palindrome
by adding characters in front of it.
Return the shortest palindrome you can find by performing this transformation.

Solution approach:
The approach is based on finding the shortest palindrome by appending characters at the beginning of the string. Here’s a concise explanation:

Reverse the String: Reverse the given string s and concatenate it with s using a separator (like #), forming new_s = s + '#' + reverse(s).

LPS (Longest Prefix Suffix) Array: Construct the LPS array for new_s. The LPS array helps in finding the longest palindrome prefix of s by analyzing the combined string.

Find Longest Palindromic Prefix: The last value of the LPS array gives the length of the longest palindromic prefix in s.

Form the Result: The suffix (remaining part) of the string after the palindromic prefix is reversed and added to the front of s to form the shortest palindrome.

This ensures that the minimum number of characters are added to the front to make the entire string a palindrome.

00:00 Problem Understanding
04:51 Without KMP Solution
08:55: With KMP Solution
Problem name: 214. Shortest Palindrome | LeetCode Daily Challenge Today | Simple Thought Process
LeetCode Daily Challenge 214. Shortest Palindrome | With & Without KMP Today Simple Thought Process
LeetCode Daily Challenge 214. Shortest Palindrome | With & Without KMP Today Simple Thought Process
LeetCode Daily Challenge 214. Shortest Palindrome | With & Without KMP Today Simple Thought Process
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