LeetCode 804 Unique Morse Code Words - Interview Question Solved Using Map & Set

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LeetCode 804 Unique Morse Code Words - Interview Question Solved Using Map & Set
Lintcode 1013 Unique Morse Code Words

Link To The Problem:

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

For example, "cab" can be written as "-.-..--...", which is the concatenation of "-.-.", ".-", and "-...". We will call such a concatenation the transformation of a word.
Return the number of different transformations among all words we have.

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