(Leetcode) [Tree] Maximum depth of binary tree
Given the root of a binary tree, return its maximum depth
Recent posts
(Leetcode) [String] Valid anagram
Determine whether a string is an anagram of another string
(Leetcode) [String] Longest repeating character replacement
Given a string s and integer k, find the maximum length substring having all same characters after k changes.
(Leetcode) [String] Longest substring without repeating characters
Given a string s, find the length of the longest substring without repeating characters.
(Leetcode) [Linked List] Merge two sorted lists
Merge the two lists in a one sorted list