LeetCode---804. 惟一摩尔斯密码词

国际摩尔斯密码定义一种标准编码方式，将每一个字母对应于一个由一系列点和短线组成的字符串， 好比: “a” 对应 “.-”, “b” 对应 “-…”, “c” 对应 “-.-.”, 等等。java 为了方便，全部26个英文字母对应摩尔斯密码表以下： [".-","-…","-.-.","-…",".","…-.","–.","…","…",".—","-.-",".-…","–","-.","—",

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