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+<h2><a href="https://leetcode.com/problems/verifying-an-alien-dictionary/">953. Verifying an Alien Dictionary</a></h2><h3>Easy</h3><hr>Verifying an Alien Dictionary - In an alien language, surprisingly, they also use English lowercase letters, but possibly in a different order. The order of the alphabet is some permutation of lowercase letters.
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+Given a sequence of words written in the alien language, and the order of the alphabet, return true if and only if the given words are sorted lexicographically in this alien language.
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+Example 1:
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+Input: words = ["hello","leetcode"], order = "hlabcdefgijkmnopqrstuvwxyz"
+Output: true
+Explanation: As 'h' comes before 'l' in this language, then the sequence is sorted.
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+Example 2:
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+Input: words = ["word","world","row"], order = "worldabcefghijkmnpqstuvxyz"
+Output: false
+Explanation: As 'd' comes after 'l' in this language, then words[0] > words[1], hence the sequence is unsorted.
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+Example 3:
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+Input: words = ["apple","app"], order = "abcdefghijklmnopqrstuvwxyz"
+Output: false
+Explanation: The first three characters "app" match, and the second string is shorter (in size.) According to lexicographical rules "apple" > "app", because 'l' > '∅', where '∅' is defined as the blank character which is less than any other character (More infohttps://en.wikipedia.org/wiki/Lexicographical_order).
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+Constraints:
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+ * 1 <= words.length <= 100
+ * 1 <= words[i].length <= 20
+ * order.length == 26
+ * All characters in words[i] and order are English lowercase letters.