{ "data": { "question": { "questionId": "822", "questionFrontendId": "804", "categoryTitle": "Algorithms", "boundTopicId": 1197, "title": "Unique Morse Code Words", "titleSlug": "unique-morse-code-words", "content": "

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

\n\n\n\n

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

\n\n
\n[".-","-...","-.-.","-..",".","..-.","--.","....","..",".---","-.-",".-..","--","-.","---",".--.","--.-",".-.","...","-","..-","...-",".--","-..-","-.--","--.."]
\n\n

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

\n\n\n\n

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

\n\n

 

\n

Example 1:

\n\n
\nInput: words = ["gin","zen","gig","msg"]\nOutput: 2\nExplanation: The transformation of each word is:\n"gin" -> "--...-."\n"zen" -> "--...-."\n"gig" -> "--...--."\n"msg" -> "--...--."\nThere are 2 different transformations: "--...-." and "--...--.".\n
\n\n

Example 2:

\n\n
\nInput: words = ["a"]\nOutput: 1\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "唯一摩尔斯密码词", "translatedContent": "

国际摩尔斯密码定义一种标准编码方式，将每个字母对应于一个由一系列点和短线组成的字符串， 比如:

\n\n\n\n

为了方便，所有 26 个英文字母的摩尔斯密码表如下：

\n\n
\n[\".-\",\"-...\",\"-.-.\",\"-..\",\".\",\"..-.\",\"--.\",\"....\",\"..\",\".---\",\"-.-\",\".-..\",\"--\",\"-.\",\"---\",\".--.\",\"--.-\",\".-.\",\"...\",\"-\",\"..-\",\"...-\",\".--\",\"-..-\",\"-.--\",\"--..\"]
\n\n

给你一个字符串数组 words ，每个单词可以写成每个字母对应摩尔斯密码的组合。

\n\n\n\n

对 words 中所有单词进行单词翻译，返回不同 单词翻译 的数量。

\n\n

 

\n\n

示例 1：

\n\n
\n输入: words = [\"gin\", \"zen\", \"gig\", \"msg\"]\n输出: 2\n解释: \n各单词翻译如下:\n\"gin\" -> \"--...-.\"\n\"zen\" -> \"--...-.\"\n\"gig\" -> \"--...--.\"\n\"msg\" -> \"--...--.\"\n\n共有 2 种不同翻译, \"--...-.\" 和 \"--...--.\".\n
\n\n

示例 2：

\n\n
\n输入：words = [\"a\"]\n输出：1\n
\n\n

 

\n\n

提示：

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