Coding Interview Resources
51.8K subscribers
784 photos
7 files
468 links
This channel contains the free resources and solution of coding problems which are usually asked in the interviews.

Managed by: @love_data
Download Telegram
๐—œ๐—œ๐—ง ๐—ฅ๐—ผ๐—ผ๐—ฟ๐—ธ๐—ฒ๐—ฒ ๐—ข๐—ณ๐—ณ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฃ๐—ฟ๐—ผ๐—ด๐—ฟ๐—ฎ๐—บ ๐—ถ๐—ป ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€๐Ÿ“Š ๐˜„๐—ถ๐˜๐—ต ๐—”๐—œ ๐—ฎ๐—ป๐—ฑ ๐—š๐—ฒ๐—ป ๐—”๐—œ ๐Ÿ˜

Placement Assistance With 5000+ companies.

๐Ÿ”ฅ Companies are actively hiring candidates with Data Analytics skills.

๐ŸŽ“ Prestigious IIT certificate
๐Ÿ”ฅ Hands-on industry projects
๐Ÿ“ˆ Career-ready skills for data & AI jobs

๐‘๐ž๐ ๐ข๐ฌ๐ญ๐ž๐ซ ๐๐จ๐ฐ๐Ÿ‘‡ :- 

https://pdlink.in/4rwqIAm

Limited seats available. Apply now to secure your spot
FREE sites to improve your coding knowledge ๐Ÿ‘จ๐Ÿปโ€๐Ÿ’ป๐Ÿ“ -

๐ŸŒ HTML - w3schools.com
๐Ÿ’… CSS - web.dev/learn/css
๐Ÿ”ฅ JavaScript - javascript.info
๐Ÿ™ Git and Github - git-scm.com
๐Ÿ“š API - rapidapi.com/learn
๐Ÿ Python - t.me/pythonproz
โš›๏ธ React - react-tutorial.app
๐ŸŽก Laravel - laracasts.com
๐ŸŒŸ VueJS - learnvue.co
๐Ÿ” SQL - t.me/sqlspecialist
๐ŸŒˆ Tailwind CSS - tailwindcss.com
๐Ÿš€ Go - gobyexample.com
๐Ÿณ Docker - docker-curriculum.com
๐Ÿฆ‹ Flutter - flutter.dev/learn
๐Ÿฆ€ Rust - rust-lang.org/learn
๐Ÿง  AI/ML - t.me/machinelearning_deeplearning
โš™๏ธ DevOps - t.me/AWS_GCP_Azure
๐Ÿงฉ TypeScript - typescriptlang.org/learn

React โค๏ธ for more like this
โค6๐Ÿ‘1
๐Ÿš€๐—š๐—ฒ๐˜ ๐—ง๐—ผ๐—ฝ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐—œ๐—œ๐—ง's & ๐—œ๐—œ๐—  

Dreaming of studying at an IIT and building a career in AI ? This is your chance

โœ… Prestigious IIT  Certification
โœ… Learn directly from IIT Professors
โœ… Placement Assistance with 5000+ Companies

๐Ÿ’ก Todayโ€™s top companies are actively looking for professionals with AI skills. 

๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—ก๐—ผ๐˜„ ๐Ÿ‘‡ :- 

๐—”๐—œ & ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ :- https://pdlink.in/4kucM7E

๐—”๐—œ & ๐— ๐—ฎ๐—ฐ๐—ต๐—ถ๐—ป๐—ฒ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป๐—ถ๐—ป๐—ด :- https://pdlink.in/4rMivIA

๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—ช๐—ถ๐˜๐—ต ๐—”๐—œ :- https://pdlink.in/4ay4wPG

โณ Limited seats โ€“ Register before the link expires!
โค1
Top Coding Domains You Should Explore in 2026 โœ…

โ€ข Backend Development
Build server-side systems
Handle logic, databases, APIs

Core skills
Languages: Java, Python, Node.js
Databases: MySQL, PostgreSQL, MongoDB
APIs: REST, GraphQL
Auth, caching, scalability
Who fits: Strong logic, system thinking, long-term products

โ€ข Frontend Development
Build user interfaces
Focus on user experience

Core skills
HTML, CSS, JavaScript
React, Angular, Vue
State management, browser performance
Who fits: Visual thinkers, UI focus, fast feedback lovers

โ€ข Mobile App Development
Build Android and iOS apps

Core skills
Android: Kotlin, Java
iOS: Swift
Flutter, React Native
App lifecycle
Who fits: Mobile-first mindset, product builders, app store focus

โ€ข Data Analytics
Turn data into insights

Core skills
SQL, Excel
Python
Power BI, Tableau
Who fits: Business thinkers, numbers-driven minds, decision support roles

โ€ข Data Science and ML
Build predictive systems

Core skills
Python
Statistics
Machine learning
Pandas, NumPy, scikit-learn
Who fits: Math interest, research mindset, model builders

โ€ข DevOps and Cloud
Deploy and scale systems

Core skills
Linux
AWS, Azure, GCP
Docker, Kubernetes
CI/CD
Who fits: Automation lovers, system reliability focus, high-pressure roles

โ€ข Cybersecurity
Protect systems and data

Core skills
Networking
Linux
Security tools
Risk analysis
Who fits: Detail-oriented, defensive mindset, compliance roles

โ€ข Game Development
Build interactive games

Core skills
C++, C#
Unity, Unreal
Physics basics, game logic
Who fits: Creative coders, graphics interest, real-time systems

Best career advice
โ€ข Pick one domain
โ€ข Build real projects
โ€ข Learn tools used in jobs
โ€ข Switch later if needed

Which domain are you targeting next?

Development ๐Ÿ‘
Data โค๏ธ
DevOps/ Cybersecurity ๐Ÿ™
Still exploring ๐Ÿ˜ฎ
โค4
๐——๐—ฒ๐˜ƒ๐—ข๐—ฝ๐˜€ ๐—™๐—ฅ๐—˜๐—˜ ๐—ข๐—ป๐—น๐—ถ๐—ป๐—ฒ ๐— ๐—ฎ๐˜€๐˜๐—ฒ๐—ฟ๐—ฐ๐—น๐—ฎ๐˜€๐˜€ ๐—•๐˜† ๐—œ๐—ป๐—ฑ๐˜‚๐˜€๐˜๐—ฟ๐˜† ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜๐˜€๐Ÿ˜

- Bridge the Gap Between Your Current Skills and What DevOps Roles Demand
- Know The Roadmap To Become DevOps Engineer In 2026

Eligibility :- Students ,Freshers & Working Professionals

๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—™๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜๐Ÿ‘‡ :- 

https://pdlink.in/40YmeqV

( Limited Slots ..Hurry Up๐Ÿƒโ€โ™‚๏ธ )

Date & Time :- March 10 , 2026 , 7:00 PM
๐Ÿ”ฅ ๐—”๐—œ & ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ฃ๐—ฟ๐—ผ๐—ณ๐—ฒ๐˜€๐˜€๐—ถ๐—ผ๐—ป๐—ฎ๐—น ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป

Upgrade your career with one of the most in-demand tech skills of 2026!

โœ” Artificial Intelligence
โœ” Machine Learning
โœ” Python for Data Science
โœ” Real-World Projects

๐ŸŽ“ Get Certified & Build Your Tech Career

๐—”๐—ฝ๐—ฝ๐—น๐˜† ๐—ก๐—ผ๐˜„๐Ÿ‘‡ :- 

https://pdlink.in/4qHVFkI

๐Ÿš€ Perfect for Students ,Freshers & Working Professionals
โค1
๐Ÿ“ข ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—”๐—น๐—ฒ๐—ฟ๐˜ โ€“ ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—ช๐—ถ๐˜๐—ต ๐—”๐—œ

Upgrade your career with AI-powered data analytics skills.

๐Ÿ“Š Learn Data Analytics from Scratch
๐Ÿค– AI Tools & Automation
๐Ÿ“ˆ Data Visualization & Insights
๐ŸŽ“ Certification Program

๐Ÿ”ฅ Highly demanded skill in todayโ€™s job market.

๐—”๐—ฝ๐—ฝ๐—น๐˜† ๐—ก๐—ผ๐˜„๐Ÿ‘‡ :- 

https://pdlink.in/4syEItX

๐Ÿš€ Perfect for Students ,Freshers & Working Professionals
SQL Interview Questions with Answers

1. How to change a table name in SQL?
This is the command to change a table name in SQL:
ALTER TABLE table_name
RENAME TO new_table_name;
We will start off by giving the keywords ALTER TABLE, then we will follow it up by giving the original name of the table, after that, we will give in the keywords RENAME TO and finally, we will give the new table name.

2. How to use LIKE in SQL?
The LIKE operator checks if an attribute value matches a given string pattern. Here is an example of LIKE operator
SELECT * FROM employees WHERE first_name like โ€˜Stevenโ€™;
With this command, we will be able to extract all the records where the first name is like โ€œStevenโ€.

3. If we drop a table, does it also drop related objects like constraints, indexes, columns, default, views and sorted procedures?
Yes, SQL server drops all related objects, which exists inside a table like constraints, indexes, columns, defaults etc. But dropping a table will not drop views and sorted procedures as they exist outside the table.

4. Explain SQL Constraints.
SQL Constraints are used to specify the rules of data type in a table. They can be specified while creating and altering the table. The following are the constraints in SQL: NOT NULL CHECK DEFAULT UNIQUE PRIMARY KEY FOREIGN KEY

React โค๏ธ for more
โค8
๐Ÿ’ป ๐—™๐—ฅ๐—˜๐—˜ ๐—˜๐˜…๐—ฐ๐—ฒ๐—น ๐— ๐—ฎ๐˜€๐˜๐—ฒ๐—ฟ๐—ฐ๐—น๐—ฎ๐˜€๐˜€ โ€“ ๐—•๐—ฒ๐˜†๐—ผ๐—ป๐—ฑ ๐—–๐—ผ๐—น๐—น๐—ฒ๐—ด๐—ฒ ๐—•๐—ฎ๐˜€๐—ถ๐—ฐ๐˜€

Still using Excel only for simple tables?
Learn how professionals use Excel for data analysis, insights & reporting.

โœ” Real business use cases
โœ” Must-know Excel formulas
โœ” Data cleaning & analysis
โœ” Career guidance

๐Ÿ“… 13 March | โฐ 6 PM

๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—™๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜๐Ÿ‘‡ :- 

https://pdlink.in/4bEDmIw

๐Ÿš€ Upgrade your Excel skills today!
How to send follow up email to a recruiter ๐Ÿ‘‡๐Ÿ‘‡

Dear [Recruiterโ€™s Name],

I hope this email finds you doing well. I wanted to take a moment to express my sincere gratitude for the time and consideration you have given me throughout the recruitment process for the [position] role at [company].

I understand that you must be extremely busy and receive countless applications, so I wanted to reach out and follow up on the status of my application. If itโ€™s not too much trouble, could you kindly provide me with any updates or feedback you may have?

I want to assure you that I remain genuinely interested in the opportunity to join the team at [company] and I would be honored to discuss my qualifications further. If there are any additional materials or information you require from me, please donโ€™t hesitate to let me know.

Thank you for your time and consideration. I appreciate the effort you put into recruiting and look forward to hearing from you soon.


Warmest regards,

(Tap to copy)
๐Ÿค– ๐—”๐—œ + ๐——๐—ฎ๐˜๐—ฎ = ๐—ง๐—ต๐—ฒ ๐—™๐˜‚๐˜๐˜‚๐—ฟ๐—ฒ ๐—ผ๐—ณ ๐—๐—ผ๐—ฏ๐˜€

Start your journey in Data Analytics & Data Science with AI Certification and gain skills companies are actively hiring for.

๐Ÿ“Š Data Analysis
๐Ÿ Python Programming
๐Ÿค– Machine Learning
๐Ÿ“ˆ AI-Driven Insights

๐Ÿ”ฅ Perfect for College Students ,Freshers & Professionals

1๏ธโƒฃ๐—ฃ๐˜†๐˜๐—ต๐—ผ๐—ป :- https://pdlink.in/3OD9jI1

2๏ธโƒฃ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ :- https://pdlink.in/4kucM7E

3๏ธโƒฃ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ :- https://pdlink.in/4ay4wPG

4๏ธโƒฃ๐—•๐˜‚๐˜€๐—ถ๐—ป๐—ฒ๐˜€๐˜€ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ :- https://pdlink.in/3ZtIZm9

5๏ธโƒฃ๐—”๐—œ & ๐— ๐—ฎ๐—ฐ๐—ต๐—ถ๐—ป๐—ฒ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป๐—ถ๐—ป๐—ด :- https://pdlink.in/4rMivIA

Don't Miss This Opportunity . Get Placement Assistance With 5000+ Companies
โค2
โœ… Web Development Mock Interview Questions with Answers ๐Ÿ’ป๐ŸŽฏ

1๏ธโƒฃ Q: What is the difference between HTML and HTML5?
A: HTML5 is the latest version and supports new elements like <audio>, <video>, <canvas>, and improved semantic tags. It also supports local storage and offline capabilities.

2๏ธโƒฃ Q: What is the difference between == and === in JavaScript?
A: == compares values after type conversion, while === compares both value and type.
Example: 5 == '5' is true, but 5 === '5' is false.

3๏ธโƒฃ Q: Explain the Box Model in CSS.
A: The CSS Box Model consists of:
- *Content* โ†’ The actual text/image
- *Padding* โ†’ Space around content
- *Border* โ†’ Around the padding
- *Margin* โ†’ Space outside the border

4๏ธโƒฃ Q: What are the different HTTP methods?
A: Common methods:
- *GET* โ†’ Retrieve data
- *POST* โ†’ Send data
- *PUT* โ†’ Update existing data
- *DELETE* โ†’ Remove data

5๏ธโƒฃ Q: What is the difference between null and undefined in JavaScript?
A:
- null โ†’ Assigned value meaning โ€œno valueโ€
- undefined โ†’ A variable that has been declared but not assigned a value

6๏ธโƒฃ Q: What is responsive design?
A: It makes web pages look good on all devices (mobile, tablet, desktop) using CSS media queries and flexible layouts.

7๏ธโƒฃ Q: What is the role of JavaScript in web development?
A: JavaScript adds interactivity to web pages โ€” like dropdowns, sliders, form validation, etc.

8๏ธโƒฃ Q: What is DOM?
A: The Document Object Model represents the page structure in a tree format, allowing JavaScript to interact with and manipulate HTML/CSS dynamically.

๐Ÿ‘ Tap โค๏ธ for more!
โค5
๐Ÿš€ ๐—ช๐—ฎ๐—ป๐˜ ๐˜๐—ผ ๐—•๐—ฒ๐—ฐ๐—ผ๐—บ๐—ฒ ๐—ฎ ๐—™๐˜‚๐—น๐—น ๐—ฆ๐˜๐—ฎ๐—ฐ๐—ธ ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—ฒ๐—ฟ ๐—ถ๐—ป ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ?

Tech companies are hiring developers with React, JavaScript, Node.js & MongoDB skills.

 This Full Stack Development Program helps you learn everything from scratch with real projects.

๐Ÿ’ก Perfect for:
* Beginners
* Students
* Career switchers

๐—ฅ๐—ฒ๐—ด๐—ถ๐˜€๐˜๐—ฒ๐—ฟ ๐—ก๐—ผ๐˜„ ๐Ÿ‘‡:- 
 
 https://pdlink.in/4hO7rWY
 
โšก Donโ€™t miss this chance to enter the high-paying tech industry!
DSA Handwritten Notes
โค9