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Spinny SDE-2 Interview Questions and Answers
Spinny SDE-2 Interview Experiences
1 interview found
Anonymous
I applied via LinkedIn and was interviewed in Mar 2023. There were 5 interview rounds.
3 Coding question, mix of easy medium and hard questions. Online proctored on Hackerrank
(1 Question)
- Q1. 1. A variation on 2 sum problem (based on number of digits) 2. Average of node value and its subtree (Count no of nodes where average of the subtree and the node itself equals to the node value). It was t...
- Ans.
2 sum problem variation based on number of digits and finding nodes where average of subtree and node value equals node value.
For the 2 sum problem variation, use a hash table to store the digits and their indices.
For the subtree problem, use a recursive function to traverse the tree and calculate the average.
Examples: [1, 2, 3, 4, 5] with target 7 and tree with root 5, left child 4, right child 6, should return 2 and ...
(1 Question)
- Q1. I was asked an LLD question about a system to manage and track cars and their maintenance. Also some questions based on run time polymorphism and SQL
(1 Question)
- Q1. Discussion with the CTO. You get to explain about the work you did and some clarifying questions.
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I appeared for an interview in Jun 2021.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
- It was a face to face (virtually) round.
- Two questions one after one and you are expected to pass all the test cases.
- Question was Easy and Medium Easy. (tags: stack, array, bfs, dfs, array)
- Timing: Afternoon
- Interviewer: he was nice, as I was able to solve both question, he was very happy, and given me the feedback.
- Q1.
Remove Consecutive Duplicates from String
Given a string
...STRconsisting of both lower and upper case characters, your task is to remove consecutive duplicate characters and return the newly formed string. - Ans.
The task is to remove consecutive duplicate characters from a given string and return the new string.
Iterate through the characters of the string
Compare each character with the next character
If they are the same, skip the next character
If they are different, append the current character to the new string
- Q2.
Number of Islands Problem Statement
You are provided with a 2-dimensional matrix having
Nrows andMcolumns, containing only 1s (land) and 0s (water). Your goal is to determine the number of islands in t... - Ans.
The task is to find the number of islands present in a 2-dimensional array filled with ones and zeroes.
Iterate through each cell in the array
If the cell is land (1) and not visited, perform a depth-first search to find all connected land cells
Increment the count of islands for each connected component found
Round duration - 135 minutes
Round difficulty - Medium
Machine Coding.
Timing: Afternoon
The interviewer was answering my questions nicely.
Round duration - 60 minutes
Round difficulty - Medium
Hiring Manager.
Interviewer: Sr Engineering Manager.
Timing: evening.
The environment was cool.
Interview Preparation Tips
Tip 1 : Stick to one coding platform either do it from geeks for geeks, coding ninja or leetcode. Never jump from one platform to other. Focus on Building the concept rather than solving it.
Tip 2 : Follow the Grooking the Object-Oriented Programming, and try to follow SOLID principle as much as you can. If possible take some MOCK interviews.
Tip 3 : Build your concept on Relational databases, you should be able to design the table structures and relationships.
Tip4: You should aware of your project and your contribution to it. Project Objective should be clear. You should know the tech stack used in project, and reason for choosing it.
Tip 1 : Don't write too many paragraphs in the project description, It should be pointwise.
Tip 2 : Don't highlight too many skills, like HTML CSS kind of things.
Tip 3 : One page.
Tip 4 : If you are not a fresher, no need to mention school achievements.
Skills evaluated in this interview
I appeared for an interview in May 2022.
(1 Question)
- Q1. Data Structures and Algorithms
(1 Question)
- Q1. Machine Coding round
Interview Preparation Tips
I appeared for an interview in May 2022.
(1 Question)
Round duration - 60 Minutes
Round difficulty - Medium
Timing was around 11 am
Environment was great, it intrigued me to join Blinkit.
- Q1.
Pair Sum Problem Statement
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to find and return a list of all pairs of elements where each sum of a pair equals 'S'.
Note:
... - Ans.
Find pairs of elements in an array that sum up to a given value, sorted in a specific order.
Sort the array in non-decreasing order.
Use two pointers approach to find pairs with sum equal to 'S'.
Return pairs in sorted order based on first value, with smaller second value coming first.
(3 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
Timing 11 am
Interviewer had good knowledge
- Q1. Can you explain the activity lifecycle in Android development?
- Ans.
Activity lifecycle in Android development involves various states like onCreate, onStart, onResume, onPause, onStop, onDestroy.
Activity is created with onCreate() method
Activity becomes visible with onStart() and onResume() methods
Activity goes into background with onPause() method
Activity is stopped with onStop() method
Activity is destroyed with onDestroy() method
- Q2. Can you explain the fragment lifecycle in Android development?
- Ans.
Fragment lifecycle in Android involves various states like created, started, resumed, paused, stopped, and destroyed.
Fragments are created using the onCreateView() method.
Fragments go through states like created, started, resumed, paused, stopped, and destroyed based on user interactions and system events.
Fragment lifecycle methods include onCreate(), onStart(), onResume(), onPause(), onStop(), and onDestroy().
- Q3. Can you explain the MVVM pattern?
- Ans.
MVVM is a design pattern that separates the user interface from the business logic and data model.
MVVM stands for Model-View-ViewModel
Model represents the data and business logic
View represents the UI components
ViewModel acts as an intermediary between the Model and View, handling user input and updating the Model
MVVM promotes separation of concerns and easier unit testing
Round duration - 30 Minutes
Round difficulty - Easy
This round is cultural fit round
Interview Preparation Tips
Tip 1 : Prepare easy/medium level data structures questions in leetcode. Solve atleast 50 questions of multiple types like strings, arrays, tree, linked list, graph
Tip 2 : Go through Android basic questions like lifecycle, live data, MVC/mvp/ mvvm pattern, retrofit, data binding
Tip 3 : Atleast solve 5 design questions like how to build Instagram, analytics library, crashlytics
Tip 1 : be concise
Tip 2 : write only those keywords which you have in depth knowledge
Skills evaluated in this interview
I applied via Job Portal and was interviewed in Jun 2024. There were 3 interview rounds.
I don't remember the ques
(1 Question)
- Q1. System design of notification system
- Ans.
Design a scalable notification system for sending real-time alerts to users.
Use a distributed system to handle high volume of notifications.
Implement message queues for asynchronous processing.
Utilize push notifications for mobile devices.
Include a user preference system for customizing notification settings.
Consider implementing a notification history feature for users to view past alerts.
(1 Question)
- Q1. System design of google pay
- Ans.
Google Pay is a digital wallet platform and online payment system developed by Google.
Google Pay uses secure tokenization to protect user's payment information.
It integrates with various payment methods like credit/debit cards, UPI, and NFC.
The system handles transactions, user authentication, and merchant integrations.
Google Pay leverages Google's infrastructure for scalability and reliability.
It provides features lik...
Interview Preparation Tips
Skills evaluated in this interview
Aditya Sundaram
Interview Preparation Tips
Experience: First round was a simple round which involved 10 multiple choice questions and 3 coding questions on hackerrank platform.
Round: Technical Interview
Experience: Mainly on topics like networks, data structures and algorithms, operating systems. The interviewers looked for people who have had prior experience in web development and asked questions regarding web development in depth too.
Tips: I recommend everyone to read the book titled, 'Cracking the Coding Interview' as it was helpful in my approach to an interview.
General Tips: The one major thing that would give you the edge in joining Myntra would definitely be exposure to web development. Since it is not a part of the curriculum , it's all the more important for you to familiarize yourself with web development. In fact, a few projects in the same field would put you in a very advantageous position to get the job.
Skill Tips: 1. Start your placement preparations well ahead, no point regretting later.
2. Keep a concise resume. Do not take your resume to several pages.
3. Do not neglect aptitude preparation. Many people do this mistake and end up not clearing the first round for several companies.
4. Be thorough with your basics across all subjects. (Do not neglect any subject, even they you may like a few and dislike the others.)
5. Keep in mind, the interviewers are really friendly and try to make sure that you're not nervous during the interview. All they want to do is to test you. Be confident and give it your best shot.
Skills:
College Name: NIT Surathkal
Spinny HR Interview Questions
I applied via Campus Placement
Interview Preparation Tips
Experience: basic Guesstimation questtions,
for eg. estimate the no of sleeping all over the world right now.
Tips: Walk the interviewer through your thinking process.
donot make vague guesses.
Round: HR Interview
Experience: 1 Tell us 5 reasons why we should hire you.
2 being an electrical engineering student, why have you applied for a analytic s/operations job profile.
Skills: Ability To Cope Up With Stress, Guesstimation Cases
Duration: 2
College Name: IIT Madras
Shobhit Shrivas
I applied via Campus Placement
Interview Questionnaire
7 Questions
- Q1. I was asked 2 questions from a course called principle of economics, such as what is elasticity etc
- Q2. It was again from my course work they asked me how to solve linear programming problem graphically
- Ans.
Graphical method for solving linear programming problems involves plotting constraints and finding feasible regions.
Identify the objective function, e.g., maximize profit: Z = 3x + 4y.
Determine constraints, e.g., x + 2y ≤ 8 and 3x + y ≤ 12.
Graph the constraints on a coordinate plane to find the feasible region.
Identify corner points of the feasible region, e.g., (0,0), (0,4), (4,0), (3,3).
Evaluate the objective functio...
- Q3. Then they asked me to tell me about my self
- Q4. They asked me to estimate number of microwaves manufactured in india per year
- Q5. Then I was asked what is my biggest achivement till now
- Q6. Then I was asked if I have any question for them
- Q7. He gave me 15 min to convence him so that he hirs me for his company
Interview Preparation Tips
Experience: They were mainly looking for people who has or worked in Start ups or who has some good PORs. They also shortlisted students with CGPA of more than 7.5.
Tips: Try taking good PORs and maintain a healthy CGPA. Make a one page resume.
Round: Technical Interview
Experience: It was good. This was my first interview, I was bit nurvous for obvious reasons but controlled my emotions perfectly. As interview progressed things started becoming normal.
Tips: Be confidant of what ever you speak. Try hidding you nervousness, its okay if you are not able to answer any question but make strong comeback in next.
Round: HR Interview
Experience: I was very confidant of myself and told some 8-9 qualities that I have and gave examples of where I used them in past.
Tips: Again be very confidant. Its okay if you fumble in between but make strong comeback. look into the eyes of interviewer it shows you are confidant. Don't lie, be yourself.
General Tips: Keep working hard, there is no subsitute of hardwork, even in IITs. And don't forget sometimes you have to loose small battels to win Wars.
All the best:)
Skills:
Duration: 8-10weeks
College Name: IIT Madras
Motivation: Oyo is progressing very fast and I wanted to be the part of there amazing journey.
Funny Moments: I kept looking into the eyes of both of my interviewer just to show them I was very confidant but the reality is I was very nervous and I was bluffing them:). After interview I had a headache.
Interview Questionnaire
3 Questions
- Q1. Tell me about your self Why do you want to work in Oyo What is the life in Bangalore
- Ans.
I am a dedicated professional with experience in management. I want to work in Oyo for its innovative approach to hospitality. Life in Bangalore is vibrant and diverse.
I have a strong background in management and leadership roles
I am attracted to Oyo for its innovative technology-driven approach to hospitality
Bangalore offers a vibrant cultural scene with diverse food options and entertainment
The city is known for its ...
- Q2. Same question
- Q3. About salary
I applied via LinkedIn and was interviewed before May 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Questions were from SQL, Python, Statistics & Business Case Studies/Metrics in the form of 4-5 rounds.
Interview Preparation Tips
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