题目链接：804. 唯一摩尔斯密码词
简单模拟。
from typing import List
class Solution:
def uniqueMorseRepresentations(self, words: List[str]) -> int:
def lookup(char: str) -> str:
return [".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..",
".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-", ".-.",
"...", "-", "..-", "...-", ".--", "-..-", "-.--", "--.."][ord(char) - ord('a')]
def translate(word: str) -> str:
return ''.join(lookup(char) for char in word)
ans = set()
for word in words:
ans.add(translate(word))
return len(ans)