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Longest Dictionary Word from Nine Letters

Google● EasyINTERNONSITE INTERVIEW

Problem statement

You are given an array of lowercase dictionary words words and a lowercase string letters containing exactly nine characters. Return the longest word that can be built using the characters in letters.

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Pro

Examples

Example 1

words = ["cat","bt","hat","tree"]letters = "atachxxxx"return = "cat"

Both cat and hat can be built and have length three. Because cat appears first, it wins the tie.

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