Link1: leetcode.com/discuss/interview-question/369272/Amazon-or-Onsite-or-Linux-Find-Command
Link2: leetcode.com/discuss/interview-question/609070/Amazon-OOD-Design-Unix-File-Search-API
Link3: glassdoor.ca/Interview/Amazon-Software-Development-Engineer-Interview-Questions-EI_IE6036.0,6_KO7,36_IP4.htm?filter.jobTitleFTS=Software+Development+Engineer
Solution: colab.research.google.com/drive/10k8goPXGtKMZHPLN1rhhNnpfxY7GwQm7#scrollTo=n2wuLE3P6Tj_

Object-Oriented Design - Amazon Locker Problem - 09 Sept, 2020

Requirements:
1. The delivery guy should be able to find an "optimal" locker for a package/packages.
2. Users should be able to use a code to open a locker and pick up a package

Object-Oriented Design Playlist: youtube.com/playlist?list=PLBtMh4xfa9FGzQI8QpUgWI1J9wDdB6RFo

If you want to join in future sessions, get on our discord. sdeskills.com/discord or discord.gg/9K84yNM

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Don't leave your system design interview to chance. Make sure you're interview-ready with Exponent's system design interview prep course. tryexponent.com/courses/system-design-interview

Don't leave your system design interview to chance. Sign up for Exponent's system design interview course today: bit.ly/3NDsBIA

Watch our mock Amazon system design interview. Neamah asks Timothy, Amazon/Airbnb software engineer, a question on how to design a reservation and payment system for a parking garage.

Watch more videos here:
- Amazon SDE answers binary tree question: youtu.be/thkuu_FWFD8
- Google SWE answers algorithms interview question: youtu.be/NRRyk0XqkkA
- Google TPM answers Tiktok system design interview question: youtu.be/Z-0g_aJL5Fw
- Microsoft SWE answers algorithms interview question: youtu.be/oD1m1iREKB4

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ABOUT US:
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Our courses include interview lessons, questions, and complete answers with video walkthroughs. Get access to hours of real interview videos, where we analyze what went right or wrong, as well as our 1000+ community of expert coaches and industry professionals, to help you get your dream job and more!

#systemdesign #amazon #airbnb #swe #tech #entrepreneurship #parking #exponent #tpm

Chapters -
00:00:00 Introduction
00:00:37 Question
00:00:53 Clarifying questions
00:02:55 Answer
00:03:11 APIs
00:09:34 Scale
00:10:55 Data types
00:19:56 Design
00:23:27 Trade-offs
00:26:15 Interview analysis
00:28:33 Tips

Parking Lot System Design is a commonly asked Object Oriented Design Interview Question in big tech companies like Google, Facebook, Microsoft, Amazon, etc. In this video, I am discussing how to tackle the System Design interview question about designing a parking lot system. This video includes the following, however, I would recommend you to watch the video full to avoid missing any important points.

00:00 - Introduction
03:15 - Requirements Collection for Parking Lot Design
08:00 - Mistakes to avoid during requirements collection
09:35 - Use Design Patterns for Object-Oriented Design for Parking Lot
10:20 - Top-Down and Bottom-Up design approaches
11:15 - The right way of identifying actors and objects in the system
13:20 - Detailed System Design of Parking Lot
26:35 - Final Remarks
27:28 - Special guest appearance

Distributed System Design Interviews Bible | Best online resource for System Design Interview Preparation is now online. Please visit: thinksoftwarelearning.com?utm_source=youtube-parking

How To Ace Your Object-Oriented Design Interviews: medium.com/@think.software.help/how-to-ace-object-oriented-design-interviews-4f9a667e0780

Please follow me on facebook.com/Think.Software.Community if you like to get notified about new course chapters getting added or when we will start another round of mock interviews and you want to participate in mock interviews or any other updates. I will also take your suggestions there about the course and the channel.

Check out our following articles:

- How to Ace Object-Oriented Design Interviews: thinksoftware.medium.com/how-to-ace-object-oriented-design-interviews-4f9a667e0780

- Elevator System Design — A tricky technical interview question: thinksoftware.medium.com/elevator-system-design-a-tricky-technical-interview-question-116f396f2b1c

- System Design of URL Shortening Service like TinyURL: thinksoftware.medium.com/tinyurl-design-from-the-bible-of-distributed-system-design-interviews-fcf821ec859

- File Sharing Service Like Dropbox Or Google Drive — How To Tackle System Design Interview: thinksoftware.medium.com/how-to-tackle-system-design-interview-for-file-sharing-service-like-dropbox-or-google-drive-7983fdbf1a82

- Design Twitter — Microservices Architecture of Twitter Service: thinksoftware.medium.com/design-twitter-microservices-architecture-of-twitter-service-996ddd68e1ca

- How to Effectively Use Mock Interviews to Prepare for FAANG Software Engineering Interviews: thinksoftware.medium.com/how-to-effectively-use-mock-interviews-to-prepare-for-faang-software-engineering-interviews-7e7bffac978

- Robinhood Backend System Design - How to receive realtime stock updates: thinksoftware.medium.com/robinhood-backend-system-design-how-to-receive-realtime-stock-updates-56cd0009bd0

- Payment Gateway System Design — How does the Stripe work: thinksoftware.medium.com/payment-gateway-system-design-how-does-the-stripe-work-917b2ba976f

#FAANG #Facebook #Google #Amazon #Apple #Microsoft #Uber #Netflix #Oracle #Lyft #SystemDesign #Interview #ComputerProgramming #ObjectOrientedDesign #ObjectOrientedProgramming

Elevator System Design is a commonly asked Object Oriented Design Interview Question in big tech companies like Google, Facebook, Microsoft, Amazon, etc. In this video, I am discussing how to tackle System Design interview questions about designing an elevator system. This video includes the following, however, I would recommend you to watch the video full to avoid missing any important points.

00:00 - Introduction
00:30 - How to tackle Object Oriented System Design Interview Questions
02:45 - Requirements of an Elevator System
11:35 - Actors and Objects in an Elevator System
15:35 - Use cases in Elevator System Design
18:00 - Classes and Interfaces in the Elevator System Design
20:05 - Dispatch Algorithms used in an Elevator System
41:15 - Final Remarks

Distributed System Design Interviews Bible | Best online resource for System Design Interview Preparation is now available. Please visit: thinksoftwarelearning.com?utm_source=youtube-elevator

Please follow me on facebook.com/Think.Software.Community if you like to get notified about new course chapters getting added or when we will start another round of mock interviews and you want to participate in mock interviews or any other updates. I will also take your suggestions there about the course and the channel.

Check out our following articles:

- How to Ace Object-Oriented Design Interviews: thinksoftware.medium.com/how-to-ace-object-oriented-design-interviews-4f9a667e0780

- Elevator System Design — A tricky technical interview question: thinksoftware.medium.com/elevator-system-design-a-tricky-technical-interview-question-116f396f2b1c

- System Design of URL Shortening Service like TinyURL: thinksoftware.medium.com/tinyurl-design-from-the-bible-of-distributed-system-design-interviews-fcf821ec859

- File Sharing Service Like Dropbox Or Google Drive — How To Tackle System Design Interview: thinksoftware.medium.com/how-to-tackle-system-design-interview-for-file-sharing-service-like-dropbox-or-google-drive-7983fdbf1a82

- Design Twitter — Microservices Architecture of Twitter Service: thinksoftware.medium.com/design-twitter-microservices-architecture-of-twitter-service-996ddd68e1ca

- How to Effectively Use Mock Interviews to Prepare for FAANG Software Engineering Interviews: thinksoftware.medium.com/how-to-effectively-use-mock-interviews-to-prepare-for-faang-software-engineering-interviews-7e7bffac978

- Robinhood Backend System Design - How to receive realtime stock updates: thinksoftware.medium.com/robinhood-backend-system-design-how-to-receive-realtime-stock-updates-56cd0009bd0

- Payment Gateway System Design — How does the Stripe work: thinksoftware.medium.com/payment-gateway-system-design-how-does-the-stripe-work-917b2ba976f

#FAANG #Facebook #Google #Amazon #Apple #Microsoft #Uber #Netflix #Oracle #Lyft #SystemDesign #Interview #ComputerProgramming #ObjectOrientedDesign #ObjectOrientedProgramming

Object-Oriented Basic :

While writing a Low-Level Design, Use of OOP design is highly recommended as it gives many advantages.
In this session, we will explore basics about the Object-Oriented Concepts, and will learn 4 main OOP concepts.

The Session will give you a brief insight into various fundamentals of Object Oriented Programming like Object, Class, Inheritance, Abstraction, Encapsulation, and Polymorphism along with their practical implementation. Through this tutorial you will learn the following topics:

1. Object-Oriented Programming
2. OOPs vs Procedural Programming
3. OOPs Concepts: Class and Object
4. Encapsulation
5. Inheritance
6. Abstraction
7. Polymorphism

🔥 DONT CLICK THIS: bit.ly/2BEDWYG

🎬 Low-Level Design Playlist: youtube.com/playlist?list=PLAC2AM9O1C5KioUMeH9qIjbAV_RMmX8rd

👍 Let's Connect on Facebook: bit.ly/31KPcgI

🔗 Share within your network: youtu.be/3F_y6VDv9P8

📲 Connect on Telegram: t.me/joinchat/Kc_ZkBsijqXJDWrtnEv5LQ

#lld #llddesign #systemdesign #design #interviews

Design Amazon Locker Service - Machine coding round - Object Oriented Design
Java Implementation - Object oriented design
Source code location - github.com/gopalbala/amazonlocker

Sharing my Amazon on-site interview experience. I hope this will be helpful for anyone of you who are preparing for the FANG interviews.

Support my channel on Patreon:
patreon.com/thesiliconstreet

I used the following resources for studying:

1) algoexpert.io (Coding, System Design and behavioral)
2) educative.io (Object-oriented Design and Coding)
3) techinterviewpro.com

Low Level System Design involves designing a system's components before implementing them in code. It is used to define how the objects and interfaces in a system will interact with each other. It also defines what state and behaviours will be present in each object.

A Interview question on LLD(Low level design) usually has a data structure like a Rate Limiter or a Cache as a question. We are expected to design it's #interface and keep the object open for extension but closed for modification (Open-closed principle). Design Patterns could be very useful during an interview and can simplify interactions if applied correctly.

The low level #SystemDesign allows us to define #DataStructure for Caches and the implementation of their algorithms. It also acts as an Object level API contract, which engineers can implement in a straightforward manner.

Looking to ace your next interview? Try this System Design video course! 🔥
get.interviewready.io

Course chapters:
1) Design an email service like Gmail
2) Design a rate limiter
3) Design an audio search engine
4) Design a calling app like WhatsApp
5) Design and code a payment tracking app like Splitwise
6) Machine coding a cache
7) Low level design of an event bus

The chapters have architectural diagrams and capacity estimates, along with subtitled videos. Use the coupon code of 'earlybird' to get a 20% discount.

#gkcs #GauravSen

Reference:
en.wikipedia.org/wiki/Low-level_design
docs.microsoft.com/en-us/dotnet/standard/design-guidelines/events-and-callbacks
refactoring.guru/design-patterns

Code link: github.com/coding-parrot/Low-Level-Design/

You can follow me on:
Facebook: facebook.com/gkcs0/
Quora: quora.com/profile/Gaurav-Sen-6
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LinkedIn: linkedin.com/in/gaurav-sen-56b6a941/

【面向对象设计OOD】Object-Oriented Design
专注于北美CS求职，FMAG世界级公司
官方地址： cspiration.com
微信公众号：北美CS求职

This video tackles a system design example question and how candidates should approach, analyze and solve such technical questions. This is video 3 out of a 3 part series for Software Development Engineer Interview Preparation (SIP).

amazon.jobs/en

Special guest Sam aka TechDebtor walks us through how to prepare for object oriented design questions and ace the communication and whiteboarding part of the interview.

This video is Part 1, in which we set up the problem and run through the design. See if you can come up with a solution before Sam posts (and explains!) the full code in Part 2: dev.to/techdebtor/get-hired-handling-object-oriented-design-questions-4i70

Follow Sam on dev.to and twitter:
☆ dev.to/techdebtor
☆ twitter.com/techdebtor

CANDIDATE PLANET:
Empowering candidates to ace interviews, negotiate offers and advocate for themselves at work.

SALARY NEGOTIATION PLAYLIST:
☆ youtube.com/playlist?list=PLY0uEDNh-Haqes9eEvyGtzrUWOHv-c1op

ACE YOUR INTERVIEWS PLAYLIST:
☆ youtube.com/playlist?list=PLY0uEDNh-HarP6UtKFYRJZnkXzz4ICi73

·什么是面向对象设计(OOD, Object oriented design)
·OOD 面试中常见面试题总结、分类
·如何评判一次OOD面试的表现是好是坏
·OOD 面试应对方法：
·设计模式讲解 Design Pattern - Strategy
·高频OOD面试题讲解 - 电梯设计 Elevator Design

更多精彩课程来九章算法官网： jiuzhang.com/?utm_source=sc-youtube-hx
九章算法致力于帮助更多程序员找到好工作，授课老师均来自谷歌、阿里等IT大厂，目前已开设算法、大数据、系统设计、OOD、人工智能等20多门课程，提供简历修改、1v1模拟面试等10+私教服务。

How do you think I did in my first system design interview? Also Gaurav is just so nice, supportive and chill! I guess you can notice I had great time giving the interview, this is how software interviews are supposed to be - fun and worth remembering!

You can get 𝐃𝐈𝐒𝐂𝐎𝐔𝐍𝐓𝐒 using code "KEERTI" -
➡️ On 𝐈𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰𝐑𝐞𝐚𝐝𝐲 - get.interviewready.io/?_aff=KEERTI
➡️ On all 𝐆𝐞𝐞𝐤𝐬𝐅𝐨𝐫𝐆𝐞𝐞𝐤𝐬 paid courses - practice.geeksforgeeks.org/courses

You can also connect with me on-
𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦 (for not so professional, chill side of my life) - instagram.com/keerti.purswani/?hl=en
𝐓𝐞𝐥𝐞𝐠𝐫𝐚𝐦 Channel - t.me/keertipurswani
𝐓𝐰𝐢𝐭𝐭𝐞𝐫 - twitter.com/KeertiPurswani?s=09
𝐋𝐢𝐧𝐤𝐞𝐝𝐈𝐧 - linkedin.com/in/keertipurswani/

The video has following parts-
0:00 Intro
0:40 Problem Statement
2:18 Requirement listing
13:22 Object states and behaviours
21:24 Algorithm
25:05 Nested Map problem
28:51 Types of requests
35:16 APIs
37:35 Request Handling with Event Bus
42:55 End to end flow
43:20 Removing redundant classes
48:04 Evaluation and verdict

#GauravSen #MockInterview #SystemDesign

In-depth system discussion of a popular coding interview question, chapters:
0:32 Problem statement
0:55 Finding a solution
2:43 Questions to ask
6:35 Object oriented design/class hierarchy
13:57 Coding question approach
23:34 Testing
This system design interview question/how to system design is for software engineers, software developers, web developers, front end engineers, QA engineers, product managers, network engineers equally important. This interview problem can be asked as a coding interview question, system design question or object oriented design question.

SiT website: successintech.com

Facebook: facebook.com/SuccessInTech/

Twitter: twitter.com/successintech

Other names for this problem are: Amazon Locker interview question, The Parking Lot interview question, Parking Lot using OO techniques, Object oriented parking lot.

Music: bensound.com

Design an Elevator system is a common system design question asked during interviews at Google, Amazon, Facebook etc. The main skill what the interviewer wants to test are you OOP skills and design patter. Many a time you would also be asked algorithmic questions as a part of this Low level design.

I have tried to bring all things together, hope this helps someone out here.

00:33 functional/system requirements
06:31 use case diagram
08:21 class diagram
18:15 Elevator operation algorithm (dispatcher algorithm)
27:29 Elevator dispatcher algorithm animation

Don't leave your software engineering career path to chance. Make sure you're interview-ready with Exponent's software developer interview prep course. Save 20% on membership through June 19. tryexponent.com/courses/system-design-interview?promo_code=TWENTYOFF

Watch our system design mock interview with Selena Shang and Dallon Asnes (Software Engineer at Uber). Dallon explains how to design Amazon Prime video.

Dallon walks through all of the components Amazon Prime Video needs to function, including providing reliable video storage, seamless streaming, and other user requirements.

Want to learn how to answer system design interview questions and land the job? Make sure you're interview-ready with Exponent's system design interview prep course. Start free. bit.ly/3ydtx0Z

Watch more videos here:
- Amazon SWE answers system design interview question: youtu.be/NtMvNh0WFVM
- Google SWE answers algorithms interview question: youtu.be/NRRyk0XqkkA
- Google TPM answers Tiktok system design interview question: youtu.be/Z-0g_aJL5Fw
- Microsoft SWE answers algorithms interview question: youtu.be/oD1m1iREKB4

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📧 Sign up for our email newsletter with PM interview lessons: bit.ly/exponentpm
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💙 Like us on Facebook for special discounts: bit.ly/exponentfb
📷 Check us out on Instagram: bit.ly/exponentig

ABOUT US:
Did you enjoy this interview question and answer? Want to land your dream career? Exponent is an online community, course, and coaching platform to help you ace your upcoming interview. Exponent has helped people land their dream careers at companies like Google, Microsoft, Amazon, and high-growth startups. Exponent is currently licensed by Stanford, Yale, UW, and others.

Our courses include interview lessons, questions, and complete answers with video walkthroughs. Get access to hours of real interview videos, where we analyze what went right or wrong, as well as our 1000+ community of expert coaches and industry professionals, to help you get your dream job and more!

#softwareengineer #softwareengineering #tech #software #entrepreneurship #product #softwaredeveloper

Chapters -
00:00 - Introduction
00:29 - Question
00:38 - Clarifying questions
01:34 - Requirements
10:13 - Design
24:30 - Interview analysis

Elevator or Lyft System Design is a commonly asked Object Oriented Design Interview Question in big tech companies . In this video, I am discussing how to implement the System design for Elevator