BASH from beginner to advanced: Solutions to Hackerrank Challenges - Episode 14: Lonely Integer
Welcome to this in-depth series of videos where we will be providing solutions and explanations for various BASH challenges from Hackerrank. In this video, we will be tackling the "Lonely Integer" challenge, which can be found at this link: https://www.hackerrank.com/challenges...
Our goal in this series is to document my thought process and solutions, and to focus on concepts and ideas rather than details. I will also be highlighting the differences between BASH and popular programming languages like Python and JavaScript.
BASH is a powerful command-line interface for interacting with an operating system. It's a shell, and the most popular one. It can be used directly in the terminal or in scripts, which are text files containing a series of instructions. BASH is particularly useful for tasks such as text processing, file operations, connecting multiple programs, and system maintenance. It is also portable, working by default on many platforms.
To declare a dictionary in Bash, you can use the following syntax:
declare -A myDict
This creates an empty dictionary called myDict.
You can then add key-value pairs to the dictionary using the following syntax:
myDict[key]=value
For example, let's create a dictionary that associates names with ages:
declare -A ages
ages["Alice"]=25
ages["Bob"]=30
ages["Charlie"]=35
We can then access the value associated with a key using the following syntax:
echo ${ages["Bob"]}
This will output 30.
If you want to see all the solutions for these challenges, you can find them on my Github repository: https://github.com/djeada/Bash-Hacker...
Also, you can find me on my website: https://adamdjellouli.com/ where I write about different programming topics, and you can see my other projects.
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