この記事は note株式会社 Advent Calendar 2022の 15 日目の記事です。 LeetCode はプログラミング問題の対策サイトだというのが専らの紹介文だと思うんだけど、別にそれだけに限定した使い方じゃなくても十分楽しいサービスだよ、という話をしたい。 LeetCodeとは ...

Given a sorted array nums, remove the duplicates in-place such that each element appears only once and returns the new length. Do not allocate extra space for another array, you must do this by ...

Getting good at LeetCode Java isn’t just about solving problems; it’s about having a good plan. You need to know where to ...

regression_binary_tree_go_thru.java This is just to tear up the regression progress for a binary tree to help me understand it better Leetcode 144 - Binary Tree Preorder Traversal (both Iterative and ...