leetcode/String/No804.java at master · Programming-With-Love/leetcode · GitHub

Name: leetcode/String/No804.java at master · Programming-With-Love/leetcode · GitHub
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packageAlgorithm.leetcode.String;

importjava.util.HashSet;

/**
 *
 * Created by tujietg on Nov 6, 2019
 */
publicclassNo804 {
publicintuniqueMorseRepresentations(String[] words) {
String[] strArray = { ".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---", "-.-", ".-..",
"--", "-.", "---", ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--.." };
HashSet<String> set = newHashSet<String>();
for (Stringitem : words) {
StringBuildersb = newStringBuilder();
for (inti = 0; i < item.length(); i++) {
sb.append(strArray[item.charAt(i) - 'a']);
 }
set.add(sb.toString());
 }
returnset.size();
 }
}