-
-
-
-
-
-
-
Given a digit string, return all possible letter combinations that the number could represent.
A mapping of digit to letters (just like on the telephone buttons) is given below.
Input:Digit string "23" Output: ["ad", "ae", "af", "bd", "be", "bf", "cd", "ce", "cf"].
Note:
Although the above answer is in lexicographical order, your answer could be in any order you want. ...
阅读题目
面试题
经典指数
-
-
-
扫描后移动端查看
相关标签
同类标签
|
微信公众号
|
|
欢迎加入,一起群聊
|