力扣：804. 唯一摩尔斯密码词

import java.util.HashSet;
import java.util.Set;


public class Solution {
    public static void main(String[] args) {
        Solution solution = new Solution();
        String[]  words = {"gin", "zen", "gig", "msg"};
        System.out.println(solution.uniqueMorseRepresentations(words));
    }

    public int uniqueMorseRepresentations(String[] words) {
        Set list = new HashSet<>();
        String[] table = {".-","-...","-.-.","-..",".","..-.","--.","....","..",".---","-.-",".-..","--",
                "-.","---",".--.","--.-",".-.","...","-","..-","...-",".--","-..-","-.--","--.."};
        for (String word : words) {
            String str = "";
            for (char c : word.toCharArray()) {
                str += table[c - 'a'];
            }
            list.add(str);
        }
        return list.size();
    }
}