Solution: Verifying an Alien Dictionary

Statement

You’re given a list of words with lowercase English letters in a different order, written in an alien language. The order of the alphabet is some permutation of lowercase letters of the English language.

We have to return TRUE if the given list of words is sorted lexicographically in this alien language.

Constraints:

• $1 \leq$ words.length $\leq 100$
• $1 \leq$ words[i].length $\leq 20$