Longest Palindrome by Concatenating Two-Letter Words
Try to solve the Longest Palindrome by Concatenating Two-Letter Words problem.
We'll cover the following
Statement
Suppose you are given an array of strings, words
, and each element in the array has a length of two. You need to return the length of the longest palindrome that can be made by concatenating some elements from words
.
If no palindrome can be made, return 0.
A palindrome is a sequence of characters that reads the same forward and backward.
Constraints:
-
words.length
words[i].length
- Each word can be used at most once.
Examples
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