LC_2131 problem : Longest Palindrome by Concatenating Two Letter Words

[Sreetama2001]

2 issue

This is a string-based problem and the tags are

palindrome , hash table , string,greedy, counting

Question _link

Solution_link

Time Complexity : $O(n)$

Space Complexity : $O(1)$

[Sreetama2001]

@sanyamjain036 It is a fully working code with comments.