Author: Sergei Golitsyn

Aloha, guys. Today, we will address more frequently asked questions and solve a few problems using the two-pointers technique. 

This approach is widely used in interview tasks. It is crucial to read the patterns in the condition of the problem and use them when solving it. This approach aims to create two-pointers, usually fast and slow pointers. After that, depending on the condition of the problem, we will move the fast/slow pointers.

Aloha guys. We are going on about popular interview questions. Today we will solve a few problems with hashing approach. 

Our first problem is:

Aloha guys. Today we are trying to solve three popular linked list problems: Linked List Cycle, Middle of the Linked List, and Remove Duplicates from Sorted List.

Let's start with my favorite Leetcode problem.