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Unique Morse Code Words

International Morse Code defines a standard encoding where each letter is mapped to a series of dots and dashes, as follows: For convenience, the full table for the 26 letters of...

International Morse Code defines a standard encoding where each letter is mapped to a series of dots and dashes, as follows:

For convenience, the full table for the 26 letters of the English alphabet is given below:

Given an array of strings words where each word can be written as a concatenation of the Morse code of each letter.

Return the number of different transformations among all words we have.

Unique Morse Code Words diagram

Example 1

Input: words = ["gin","zen","gig","msg"]

Output: 2

Explanation: The transformation of each word is: "gin" -> "--...-." "zen" -> "--...-." "gig" -> "--...--." "msg" -> "--...--." There are 2 different transformations: "--...-." and "--...--.".

Example 2

Input: words = ["a"]

Output: 1

Constraints

  • 1 <= words.length <= 100
  • 1 <= words[i].length <= 12
  • words[i] consists of lowercase English letters.

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