--- title: "Thi Le (@thi-lee) | Hashnode" description: "I'm talking data structure and algorithms, for now. Read the latest articles by Thi Le on Hashnode." url: "https://hashnode.com/@thi-lee" --- @thi-lee # Thi Le @thi-lee · Joined June 2021 I'm talking data structure and algorithms, for now ### [How I will Leetcode and review next week](https://cup-of-coding.hashnode.dev/how-i-will-leetcode-and-review-next-week?utm_source=hashnode&utm_medium=feed) I have been doing Leetcode on-and-off lately. "On" for most days. "Off" when I have an exam or, lately, feel not in good health. I know this is not a recommended schedule, so I want to incorporate a system to learn and review. Set up: Focus on 75 B... 2 min read · [cup-of-coding.hashnode.dev](https://cup-of-coding.hashnode.dev/how-i-will-leetcode-and-review-next-week?utm_source=hashnode&utm_medium=feed) [Jul 30, 2021](https://hashnode.com/posts/how-i-will-leetcode-and-review-next-week/6103f2f89036db5b3513c745) ### [Operations on Arrays and their time complexity](https://cup-of-coding.hashnode.dev/operations-on-arrays-and-their-time-complexity?utm_source=hashnode&utm_medium=feed) Or what to do with the books at hand 3 min read · [cup-of-coding.hashnode.dev](https://cup-of-coding.hashnode.dev/operations-on-arrays-and-their-time-complexity?utm_source=hashnode&utm_medium=feed) [Jul 4, 2021](https://hashnode.com/posts/operations-on-arrays-and-their-time-complexity/60e195f003707d644a502627) ### [Explaining O(n) and O(1)](https://cup-of-coding.hashnode.dev/explaining-on-and-o1?utm_source=hashnode&utm_medium=feed) O(n) vs O(1) When we say an algorithm is O(n), we imply that it takes n steps to take this algorithm from start to finish, given n is the number of input, or in the array case, the length of an array. For example, let's look at the following code sn... 2 min read · [cup-of-coding.hashnode.dev](https://cup-of-coding.hashnode.dev/explaining-on-and-o1?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/explaining-on-and-o1/60db518d7c7df7644acdda58) [Jun 29, 2021](https://hashnode.com/posts/explaining-on-and-o1/60db518d7c7df7644acdda58) ### [Library books, or are we talking "Arrays"?](https://cup-of-coding.hashnode.dev/library-books-or-are-we-talking-arrays?utm_source=hashnode&utm_medium=feed) \[ Data Structures \] Arrays – what about them? 4 min read · [cup-of-coding.hashnode.dev](https://cup-of-coding.hashnode.dev/library-books-or-are-we-talking-arrays?utm_source=hashnode&utm_medium=feed) [Jun 24, 2021](https://hashnode.com/posts/library-books-or-are-we-talking-arrays/60d4c4075ed303057ace9c4e)