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Junglee Games
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posted on 8 Oct 2024
I have worked on a mobile application for a fitness tracking device.
Led cross-functional team to develop app features and user interface
Implemented integration with device sensors for real-time data tracking
Conducted user testing and gathered feedback for continuous improvement
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I was interviewed before Feb 2024.
There were two coding questions; one was related to linked lists, and the other was linked to binary trees.
Developed a web application for tracking inventory and sales data
Used React for front-end development
Implemented RESTful APIs using Node.js and Express for back-end
Utilized MongoDB for database management
Integrated authentication and authorization features for secure access
Implemented data visualization using Chart.js
Reversing a linked list involves changing the direction of pointers to go from the end to the beginning.
Start by initializing three pointers: current, previous, and next.
Iterate through the linked list, updating the pointers to reverse the direction of the links.
Update the head of the linked list to point to the new first node, which was the original last node.
Program to find perfect squares between two numbers
Iterate through numbers between the given range
Check if the square root of the number is an integer
If yes, then it is a perfect square
Smart pointers in C++ are objects that act like pointers but provide automatic memory management.
Smart pointers help prevent memory leaks by automatically managing memory allocation and deallocation.
Examples include unique_ptr, shared_ptr, and weak_ptr.
unique_ptr is used for exclusive ownership, shared_ptr for shared ownership, and weak_ptr to prevent circular references.
Mutual exclusion is a concept in concurrent programming where only one thread can access a shared resource at a time.
Ensures that only one thread can access a critical section of code at a time
Prevents race conditions and data corruption
Commonly implemented using locks, semaphores, or mutexes
Example: Using a mutex to protect a shared variable in a multi-threaded application
Implementing multithreading involves creating and managing multiple threads to execute tasks concurrently.
Identify the tasks that can be executed concurrently
Create and manage multiple threads to execute these tasks simultaneously
Use synchronization techniques like locks and semaphores to prevent race conditions
Handle communication and coordination between threads
Consider thread safety and resource sharing issues
I applied via Campus Placement
Zynga had asked for a case submission (Pick any product and increase its revenue by 5%)so first few questions were based on that
I had suggested for monetization by introduction of new feature and questions revolved around that feature.Why do you think people will pay for it? How can you use data to justify if such a feature is required? Be very specific w.r.t to defining customer journey and what are the data points that you will collect through the journey to verify feature requirement before you build it
Final question was, give a 2 min pitch for this feature to your senior and
how you will convince your bandwidth crunched technical resource to build this
feature
Further, he gave additional problem solving of an e-commerce platform. Bounce rate of an ecommerce website if up by 20%, what do you think is the reason.
Structure is very important here. Be well versed with the e-commerce funnel and which KPIs you will look at to know what is going on. I started by asking the device type questions (Mobile vs Desktop), he said the bounce rate is in mobile app and not website. Further I asked for a trend (as in for how long we see this increment). To this he mentioned that the bounce rate has increased suddenly in one day span. Post this I went into the ecommerce funnel and tried to identify from which page customers were leaving the application. Once that was narrowed down, I asked for has there been any UI changes in this one-day span. It turned out that technical team had done some UI changes because of which few call to action buttons were not visible on the mobile screen (less than 4inch screen).
I applied via Campus Placement
Questions based on case study submitted ( Choose an existing app and increase revenue by 5% for existing users) and resume
Why did you choose MakeMyTrip for the case submission?
Why can the feature fail?
Resume based questions
Puzzle - I have a Mathematical logic in my mind, and I would give you three numbers that satisfy that logic. You cannot ask me questions but can only give me three more numbers to which I would reply ‘yes’ if the numbers satisfy the logic and ‘no’ if they do not. You can ask unlimited number triplets, but you have only one shot in solving the logic. The numbers are 2,4,6. (E.g., If I say 3,6,9, the interviewer will respond as ‘yes’)
The numbers are in ascending order ( The key here is to eliminate all possibilities and not jump to conclusion)
Three ants are sitting on the three corners of an equilateral triangle. Each moves at constant speed and can independently move either in a clockwise or anticlockwise direction. If they start at the same time find the probability of collision
Design an online chess game. How will you monetize it? – Suggest five ways. How will you increase retention? How will you increase engagement?
Why do you think most games have launched a system where they allow users to buy coins through which they can make in-game purchases rather than allowing users to purchase those items directly?
Amazon’s daily revenue has fallen by 20%. Find the root cause.
In Farmville, we organize a seasonal sale during Halloween and Christmas where we sell season specific game items such as Christmas tree, Halloween pumpkins which can be added to the farm. The revenue generated through sale in Halloween was $300,000. Now during Christmas sale, we plan to sell the following in-game items: Reindeer, Christmas tree and Santa statue. The pricing and sales strategy lie in your hands. Suggest a strategy to increase revenue to $1,000,000 during Christmas.
Imagine you are the PM of Dota-2, what do you think is the most important “game-metric” that improved after the launch of Battle Pass. ( The question specific to Dota 2 was asked because I had mentioned I was a Dota2 gamer in my resume.)
I applied via Referral and was interviewed in Jan 2024. There were 2 interview rounds.
Dig deep on previous experience to understand the specific contributions
posted on 20 Dec 2021
I was interviewed in Oct 2021.
Round duration - 90 Minutes
Round difficulty - Medium
The first round was scheduled in the evening time.
First of all interviewer introduced himself and after my introduction
He directly shoot first DSA question. The question was easy but conceptual. I have solved some question with same concept and he ask me to share the screen and code in online compiler. Finally I was able to get correct output with all the use cases and I was like "Half work done!"
Then he asked me very core concepts of JavaScript along with that Some Output based questions.
Then finally he asked me theory questions on React along with my experience in React.
The interviewer was very helpful as well as polite. I don't think if he will not help me during interview I could crack the interview
Ninja is relocating to a place called NinjaGram, and for school admission, he is required to identify if a given sentence is a pangram. Your task is to assist Ninja in determini...
Yes, the sentence is a pangram if it includes every letter of the English alphabet at least once.
Check if the sentence contains all 26 letters of the English alphabet.
Convert the sentence to lowercase to simplify the checking process.
Use a set to keep track of the letters present in the sentence.
Iterate through the sentence and add each unique letter to the set.
After iterating, check if the set contains all 26 letters.
Tip 1 : Code at least a single problem on your favourite coding platform with proper understanding of concept.
Tip 2 : Work on your resume, specifically try to grab some technical achievements(Hackathons, GSoc, etc) along with your degree which can stand out you from other candidates.
Tip 3 : Ask your friend for some mock interviews which can help you to excel in interview.
Tip 1 : Project description should contain maximum keywords mentioned in Job Description. Success Matrix of project will give you an edge in the interview.
Tip 2 : Resume should be one page along with some clickable GitHub and Achievments links if possible.
posted on 11 Feb 2022
posted on 18 Apr 2024
Search for a target value in a 2D matrix efficiently.
Use binary search on rows to find the potential row where the target value may exist.
Then use binary search on that row to find the target value.
Find quadraplets in an array that sum up to a target value.
Use a nested loop to iterate through all possible combinations of quadraplets.
Keep track of the sum of each quadraplet and compare it to the target value.
Return the quadraplets that match the target sum.
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