Hackerrank_30daysOFcode

Repository for Hackerrank 30 Days of Code
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NOTE: Before creating a Pull Request, make sure you add ✅ to Completed or if it can not be execute in that particular language then add ❌ to Completed in that particular problem. Failing to do so will mark your PR as invalid and won't be counted in hactoberfest inspite of any good contribution. Due to increase of PR and the repo being highlighted by Hactoberfest itself on their website, we are going to take only those contributions which have updated the readme as per your PR changes.

Introduction

Thirty days of code by Hacker rank is aimed at improving your coding skills by coding for 30 days in a row. You can also unlock a new code challenge and tutorial each day and then, submit solutions in Java, C++ and other popular languages. But, this can prove to be quite a difficult task at times. So, here are some solutions for you to go through.

Table of Contents

• Introduction
• Table of Contents
  • Solutions
  • Completed
  • About The Repo
  • Credits

Solutions

NOTE: First, try to solve it on your own. If facing some difficulty, you can see this.

• Python
• C++
• Java
• Javascript
• Go
• C
• C#
• PHP
• TypeScript
• Swift
• Ruby
• Rust
• Julia
• Kotlin
• Scala
• Dart

Completed

✅ ⇒ Completed

❌ ⇒ Invalid/Cannot be implemented

Day	Problem Statement	Python	C	C++	Java	Javascript	Go	C#	PHP	TypeScript	Swift	Julia	Kotlin	Rust	Scala	Dart	Ruby
00	Hello, World.	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
01	Data Types	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅
02	Operators	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
03	Intro to Conditional Statements	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
04	Class vs. Instance	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅
05	Loops	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅
06	Let's Review	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅
07	Arrays	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅
08	Dictionaries and Maps	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	✅
09	Recursion 3	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅		✅	❌	✅
10	Binary Numbers	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅		✅	✅	✅
11	2D Arrays	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅		❌	✅
12	Inheritance	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	✅	❌	❌	✅
13	Abstract Classes	✅	❌	✅	✅	✅	❌	✅	✅	✅	❌	❌	❌	❌	❌	❌	✅
14	Scope	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	❌	❌	❌	❌
15	Linked List	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	❌	❌	❌	✅
16	Exceptions - String to Integer	✅	❌	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	❌	❌	✅
17	More Exceptions	✅	❌	✅	✅	✅	✅	❌	✅	✅	✅	❌	❌	❌		❌	✅
18	Queues and Stacks	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	❌	✅	❌	✅
19	Interfaces	✅	❌	✅	✅	✅	❌	✅	✅	✅	❌	❌	❌	❌	❌	❌	❌
20	Sorting	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅			❌	✅
21	Generics	✅	❌	✅	✅	✅	✅	✅	❌	✅	✅	❌	❌	❌	❌	❌	❌
22	Binary Search Trees	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	❌	❌	❌	❌
23	BST Level-Order Traversal	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅	❌	❌	❌	❌	❌
24	More Linked Lists	✅	✅	✅	✅	✅	❌	✅	✅	✅	✅	❌	❌	❌	❌	❌
25	Running Time and Complexity	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅		❌	✅		✅
26	Nested Logic	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅		✅			❌	✅
27	Testing	✅	❌	✅	✅	❌	❌	❌	❌	✅	❌	❌	❌	❌	❌	❌	❌
28	RegEx, Patterns, and Intro to Databases	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅		✅			❌
29	Bitwise AND	✅	✅	✅	✅	✅	✅	✅	✅	✅	✅		✅	✅	✅	❌	✅

About The Repo

This is a repository aiming to provide solutions for 30 days code challenge (2020) conducted on Hackerrank. The solutions are available in major languages like C, C++, Python, Go ,Java ,C#, Javascript, PHP, Typescript and Swift as of now. It is a great platform for users to contribute and provide the solutions in other languages too.

EDIT: Happy to annouce that due in increase in contribution in this repo, our repo has been highlighted on Hacktoberfest site itself.

Credits

To all the contributors/collaborators out there spending there time to make valuable contribution in this beginner friendly repo and special thanks to DigitalOcean for organizing such an awsome fest with Intel and DEV on GitHub. This fest has helped beginners to join/learn how open source works.

Looking forward for more contribution in this community. Happy coding!