Longest Word in Kotlin

Given an ArrayList of strings words, return the longest word: the one with the most letters.

If several words share the longest length, return the first of them.

Example 1:

Input: words = ["I", "love", "pancakes"]
Output: "pancakes"
Explanation: "pancakes" has 8 letters, more than "I" (1) and "love" (4).

Example 2:

Input: words = ["apple", "kiwi", "mango"]
Output: "apple"
Explanation: "apple" and "mango" both have 5 letters, the most. "apple" comes first, so it is the answer.

Example 3:

Input: words = ["code"]
Output: "code"
Explanation: With only one word, it is the longest.

Constraints:

• words has at least one word.
• Every word is made of English letters, lowercase or uppercase.
• On a tie, the answer is the first of the longest words.