Hello world! This is the seventh article of LeetCode Walkthrough. Today, I’ll be writing about 240. Search a 2D Matrix II. It is the 23rd question of February LeetCoding Challenge 2021. For this problem, we are asked to write an efficient algorithm that searches for a target value in an…

Hello world! This is the sixth article of LeetCode Walkthrough. Today, I’ll be writing about 199. Binary Tree Right Side View. It is the sixth question of February LeetCoding Challenge 2021. For this problem, given a binary tree, we need to return the values of the nodes you can see…

Hello world! This is the fifth article of LeetCode Walkthrough. Today, I’ll be writing about 71. Simplify Path. It is the fifth question of February LeetCoding Challenge 2021. For this problem, given an absolute path to a file or directory in a Unix-style file system, we need to convert it…

Hello world! This is the fourth article of LeetCode Walkthrough. Today, I’ll be writing about 141. Linked List Cycle. It is the third question of February LeetCoding Challenge 2021. For this problem, given a linked list, we need determine if it has a cycle in it. There is a cycle…

Hello world! This is the third article of LeetCode Walkthrough where I record my thinking process to the solution to LeetCode problems. Today, I’ll be writing 669. Trim a Binary Search Tree. This is the second question of February LeetCoding Challenge 2021. For this problem, we are asked to trim…

Hello world! This is the second article of LeetCode Walkthrough where I record my thinking process to the solution to LeetCode problems. Today, I will be writing about 191. Number of 1 Bits. This is very first question of February LeetCoding Challenge 2021. …

Hello world! This is the very first article of LeetCode Walkthrough where I record my thinking process to the solution to LeetCode problems. I decided to write about 1663. Smallest String With A given Numeric Value as it was the most recent problem I worked on. For this problem, we…