Valid Palindrome - LeetCode Day 3 Challenge ๐
Solve the Valid Palindrome problem using 2 pointers and reverse techniques in the August LeetCoding Challenge. Explore more challenges!

Algorithms Made Easy
1.1K views โข Aug 3, 2020

About this video
The day 3 problem in August Leetcoding Challenge. ( Valid Palindrome ).
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0:00 How to find if string is a valid Palindrome?
0:43 Compare with reverse approach
1:23 Two pointer approach
Problem Link: https://leetcode.com/problems/valid-palindrome/
Problem statement:
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
Note: For the purpose of this problem, we define empty string as valid palindrome.
Example 1:
Input: "A man, a plan, a canal: Panama"
Output: true
Example 2:
Input: "race a car"
Output: false
Constraints:
s consists only of printable ASCII characters.
If you find any difficulty or have any query then do COMMENT below. PLEASE help our channel by SUBSCRIBING and LIKE our video if you found it helpful.
Code Link: https://github.com/Algorithms-Made-Easy/August-Leetcoding-Challenge/blob/master/Day-3%20Valid%20Palindrome
#coding #interview #programminglife #programmingisfun #programmer #tech #software #codinglife #leetcode
Check out our other popular playlists:
โ โ โ [ July Leetcoding Challenges ] : https://www.youtube.com/playlist?list=PLJtzaiEpVo2wrUwkvexbC-vbUqVIy7qC-
โ โ โ [ Cracking the Coding Interview - Unique String ] : https://www.youtube.com/playlist?list=PLJtzaiEpVo2xXf4LZb3y_BopOnLC1L4mE
โ โ โ [ June Leetcoding Challenges ] : https://www.youtube.com/playlist?list=PLJtzaiEpVo2xIfpptnCvUtKrUcod2zAKG
โ โ โ [ May Leetcoding challenges ]: https://www.youtube.com/playlist?list=PLJtzaiEpVo2wRmUCq96zsUwOVD6p66K9e
0:00 How to find if string is a valid Palindrome?
0:43 Compare with reverse approach
1:23 Two pointer approach
Problem Link: https://leetcode.com/problems/valid-palindrome/
Problem statement:
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
Note: For the purpose of this problem, we define empty string as valid palindrome.
Example 1:
Input: "A man, a plan, a canal: Panama"
Output: true
Example 2:
Input: "race a car"
Output: false
Constraints:
s consists only of printable ASCII characters.
If you find any difficulty or have any query then do COMMENT below. PLEASE help our channel by SUBSCRIBING and LIKE our video if you found it helpful.
Code Link: https://github.com/Algorithms-Made-Easy/August-Leetcoding-Challenge/blob/master/Day-3%20Valid%20Palindrome
#coding #interview #programminglife #programmingisfun #programmer #tech #software #codinglife #leetcode
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Video Information
Views
1.1K
Likes
13
Duration
3:20
Published
Aug 3, 2020
User Reviews
4.3
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