2021年3月12日
Leetcode 104. Maximum Depth of Binary Tree
摘要： Description: Given the root of a binary tree, return its maximum depth. A binary tree's maximum depth is the number of nodes along the longest path fr 阅读全文
posted @ 2021-03-12 19:37 summer_mimi 阅读(68) 评论(0) 推荐(0)
leetcode 17. Letter Combinations of a Phone Number
摘要： Description: Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. Return the 阅读全文
posted @ 2021-03-12 17:42 summer_mimi 阅读(56) 评论(0) 推荐(0)