Discover data structures and algorithms using Python. Gain insights into solving real-world problems and typical interview questions with detailed reviews, explanations, and hands-on coding exercises.

Data structures and algorithms are among the most fundamental concepts of Computer Science. Whether it’s real-world problems you’re trying to solve or the typical coding question asked in an interview, almost every problem requires you to demonstrate a deep understanding of data structures and algorithms. 

This course is a detailed review of some of the most common data structures and algorithms that you’ll see in interviews and your everyday work. With implementation details, thorough explanations, and hands-on coding exercises, you’ll quickly gain the confidence you need to solve any problem, no matter the situation.

Data Structures and Algorithms in Python

In this lesson, we will use a hash table to remove all duplicate entries from a single linked list. For instance, if our singly linked list looks like this:
```
1 - 6 - 1 - 4 - 2 - 2 - 4
```

Then the desired resulting singly linked list should take the form:
```
1 - 6 - 4 - 2
```

Below is another example to illustrate the concept of removing duplicates:

# Algorithm 
The general approach to solve this problem is to loop through the linked list once and keep track of all the data held at each of the nodes. We can use a hash table or Python dictionary to keep track of the data elements that we encounter. For example, if we encounter `6`, we will add that to the dictionary or hash table and move along. Now if we meet another `6` and we check for it in our dictionary or hash table, then we'll know that we already have a `6` and the current node is a duplicate. 

# Implementation

Let's go ahead and code a solution using the idea discussed above:

In this lesson, we will learn how to remove duplicates from a linked list. 

Introduction

Stack

Singly Linked Lists

Circular Linked Lists

Doubly Linked Lists

Arrays

Binary Trees

Binary Search Trees

Binary Search

Recursion

String Processing

Remove Duplicates

Algorithm #