Arrays

Explore the fundamentals of arrays in Python, including how to initialize arrays using the array library, the different data types supported, and common operations such as slicing, modifying, adding, and removing elements. Understand how arrays differ from lists and gain practical skills for manipulating homogeneous sequences essential for coding interviews and programming tasks.

We'll cover the following...

Introduction
Initializing Arrays
Types of Arrays
Array slicing
- Changing or adding array elements
- How do you remove/delete elements?

Introduction

In Python, an array is just an ordered sequence of homogeneous elements. In other words, an array can only hold elements of one datatype. Python arrays are basically just wrappers for C arrays. The type is constrained and specified at the time of creation.

Initializing Arrays

Python arrays are initialized using the array library:

import array
new_array = array.array('type', [list])

Here type defines the data type of array and list is a python list containing homogenous elements.

Consider the example below:

1.Introduction to Complexity Measures

2.Introduction to Lists

3.Introduction to Linked Lists

4.Introduction to Stacks and Queues

5.Introduction to Graphs

6.Introduction to Trees

7.Trie

8.Introduction to Heap

9.Introduction to Hashing

10.Summary of Data Structures

Mock Interview

Arrays

Introduction

Initializing Arrays

Types of Arrays