sachuverma / Datastructures Algorithms
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DATA STRUCTURES & ALGORITHMS
Resources and Solutions ^_^
Table of Contents
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🏆 Roadmap to Dream Placement
Language
- Intent
- Familiarity with Syntax
- Familiarity with all keywords & Basic Concepts
- main focus is on, that are you comfortable in writing code with your preferred language
- Choices
- C++
- Refrences:
1️⃣ cpprefrences
2️⃣ tutorialspoint
3️⃣ cplusplus - Time Required:
1️⃣ 1-2 weeks
2️⃣ 1-2 hrs/day
- Refrences:
- Java
- Refrences:
1️⃣ Tutorialpoint
2️⃣ GFG - Time Required: same as above
- Refrences:
- Python
- Refrences:
1️⃣ Tutorialspoint
2️⃣ w3schools - Time Required: same as above
- Important Callout: Some companies don't allow python as a coice in their online coding test, so prepare accordingly
- Refrences:
- C++
Data Structure and Algorithms
- Without this, No Software Engineering Interview, in a tech giant can be cracked
- Follow the DSA Crack Sheet List given below
- Time Required:
1️⃣ 2-3 months
2️⃣ 6-8 questions/day
3️⃣ 3-6 hrs/day
Projects
- You need some projects to showcase your skills to your interviewer
- Choices:
1️⃣ Mobile Development
2️⃣ Web Development
3️⃣ Machine Leraning
4️⃣ Some other stuff (like, Blockchain, IOT, etc) - Time Required: 3 months (doing on weekends 6-8 hours)
- Choices:
Subjectve Topics
- Do a Subsequent reading, revision any day you get time
1️⃣ Operating System
2️⃣ OOPS, Object Oriented Skills
3️⃣ DBMS, Databse Management
4️⃣ Computer Networking
Competitive Programming
- CP needs time, it's not somthing thant you can master in 2 months, We will get comfortable with online platorms and get a taste of competitive programming
- Leetcode questions nearly 150-200 questions
- Category:
1️⃣ Easy: 30%
2️⃣ Medium: 50%
3️⃣ Hard: 20%
- Category:
- If time allows then go for Codeforces div2 Level A,B and C question
- Time Required:
1️⃣ 150-200 Questions
2️⃣ 2 months
3️⃣ 3-4 Ques/day
System Design
- Tech Level:
1️⃣ System's overview like we will use this queue with DynamoDB and a acheduler with justification of why we are using this DB, SQS, SNS, multithreading, etc.
2️⃣ for SDE-1 equivalent positions, this level is somewhat rare - Normal Understanding:
1️⃣ knowledge of dividing system & creating a rough DFD of system
2️⃣ knowledge of DB Schema creation
3️⃣ able to create problem-solving logic or not
4️⃣ Time Required: Just need some reading of artiles/notes, can be pursued parallely - Great Resources:
1️⃣ Grokking
2️⃣ Primer
Misc Stuff
-
Aptitude/Reasoning
1️⃣ Do some mock tests to gain confidence - Basic Programming MCQ
1️⃣ C/C++/Java/Python fundamentals
2️⃣ Print output type questions
3️⃣ Time/space complexity Questions
4️⃣ SQL Queries - Puzzles
- Always go through 50-60 interview experiences before interview
🔰Notes and Resources
🔖Best book for Coding Interviews - Cracking-The-Coding-Interview
Urls for other Notes, and Reading Resources picked from different editorials.
View Resources/Articles
View Notes Links
Question Lists
🔰DSA Crack Sheet
Data Structures and Algorithms Cracks Sheet contains most necessary questions to learn and grasp about most common and important DS and Algos
🔰Top Interview Preparation Questions
This is LeetCode's official curated list of Top classic interview questions to help you land your dream job. Our top interview questions are divided into the following series:
- Easy Collection
- Medium Collection
- Hard Collection
to help you master Data Structure & Algorithms and improve your coding skills.
Just like any other skills, coding interview is one area where you can greatly improve with deliberate practice.
Most of the classic interview questions have multiple solution approaches. For the best practice result, we strongly advise you to go through this list at least a second time, or even better - a third time.
-
[x] By the second attempt, you may discover some new tricks or new methods.
-
[x] By the third time, you should find that your code appear to be more concise compared to your first attempt. If so, congratulations!
Remember: Deliberate practice does not mean looking for answers and memorizing it. You won't go very far with that approach. The more you are able to solve a problem yourself without any reference to answers, the more you will improve.
🔰Companywise Interview Questions
It is containing the list of company wise questions available on leetcode premium. Every pdf file corresponds to a list of questions on leetcode for a specific company based on the leetcode company tags. The list of questions within each pdf is further sorted by their frequency, so the most popular question for a specific company is at the top. Download All PDFs
🔰Leetcode Daily Challenges
This Challenge is beginner-friendly. It consists of daily problems given by Leetcode. A problem is added here each day.
🏆Sources
Other coding websites
🏆Contributing
Contributions are what make the open source community such an amazing place to be learn, inspire, and create. Any contributions you make are greatly appreciated.
- Fork the Project
- Create your Feature Branch (
git checkout -b feature/AmazingFeature) - Commit your Changes (
git commit -m 'Add some AmazingFeature') - Push to the Branch (
git push origin feature/AmazingFeature) - Open a Pull Request
🏆License
Distributed under the MIT License. See LICENSE for more information.
🏆Contact
Project Link: https://github.com/sachuverma/DataStructures-Algorithms
Sachin Verma : [email protected]
Drop a ⭐ if you like my work😄