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Jupiter Money
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I applied via Job Portal and was interviewed before Sep 2023. There were 4 interview rounds.
Medium level leet code questions
Low level system design of Instagram involves designing the core components like database, storage, caching, and networking.
Use sharding to distribute data across multiple database servers for scalability.
Implement a caching layer using Redis or Memcached to improve performance.
Utilize a content delivery network (CDN) for faster content delivery to users.
Design a fault-tolerant storage system to ensure data durability ...
Designing a message queue system for efficient communication between components
Define the requirements and constraints of the system
Choose a suitable messaging protocol (e.g. AMQP, MQTT)
Design the message format and structure
Implement mechanisms for message persistence and delivery guarantees
Consider scalability and fault tolerance
Use appropriate data structures and algorithms for efficient message handling
My goal is to continuously improve my technical skills, contribute to impactful projects, and eventually move into a leadership role.
Continuously improve technical skills through learning new technologies and best practices
Contribute to impactful projects by delivering high-quality code and solutions
Work towards moving into a leadership role by taking on more responsibilities and mentoring junior team members
I chose Jupiter because of its strong gravitational pull and potential for scientific exploration.
Jupiter's large size and mass make it a key player in shaping the solar system
Its strong magnetic field and radiation belts provide valuable insights for space research
Jupiter's moons, like Europa and Io, offer unique environments for potential exploration missions
Top trending discussions
I appeared for an interview before Sep 2020.
Round duration - 90 mins
Round difficulty - Hard
There were questions related to DP and DFS.
You are given a long type array/list ARR
of size N
, representing an elevation map. The value ARR[i]
denotes the elevation of the ith
bar. Your task is to determine th...
Calculate the total amount of rainwater that can be trapped between given elevations in an array.
Iterate through the array and calculate the maximum height on the left and right of each bar.
Calculate the amount of water that can be trapped at each bar by taking the minimum of the maximum heights on the left and right.
Sum up the trapped water at each bar to get the total trapped water for the entire array.
Round duration - 60 mins
Round difficulty - Medium
At first, I was asked about the different projects that I have done so far. We had a detailed discussion on the same.
He also checked my OOP concepts
Designing an LRU Cache involves implementing a data structure that stores a fixed number of items and removes the least recently used item when full.
Start by defining the data structure for the cache, typically using a combination of a hashmap and a doubly linked list.
Implement methods for getting and setting key-value pairs in the cache.
When a new item is added to the cache, check if it exceeds the maximum capacity. I...
Given a Singly Linked List of integers, your task is to reverse the Linked List by altering the links between the nodes.
The first line of input is an intege...
Reverse a singly linked list by altering the links between nodes.
Iterate through the linked list and reverse the links between nodes
Use three pointers to keep track of the current, previous, and next nodes
Update the links between nodes to reverse the list
Return the head of the reversed linked list
You are given the head node of a singly linked list. Your task is to return a pointer pointing to the middle of the linked list.
If there is an odd number of elements, return the ...
Return the middle element of a singly linked list, or the one farther from the head if there are even elements.
Traverse the linked list with two pointers, one moving twice as fast as the other
When the fast pointer reaches the end, the slow pointer will be at the middle
If there are even elements, return the one that is farther from the head node
Handle edge cases like linked list of size 1 or empty list
Round duration - 60 mins
Round difficulty - Medium
It is HR + Technical round
asked about the Behavioural questions and how you justify yourself in an argument .questions related to current technology.
They gave me feedback on how well I had performed so far and gave me suggestions on what more can I do to further improve myself.
Tip 1 : Be thorough about your projects
Tip 2 : Prepare Ds and Algo and Practice all standard questions
Tip 3 : Know the complexities of the code that you’ve written.
Tip 1 : Mention at least 2 projects.
Tip 2 : Don't make any silly spelling mistakes on resume
I applied via Campus Placement and was interviewed in Jan 2024. There were 3 interview rounds.
Easy doable questions ( can be completed in 30 mins)
20 MCQs + 2 Coding Question
Medium Leetcode, Array, String, Tree, DP
I applied via LinkedIn and was interviewed in Jun 2024. There were 2 interview rounds.
Data Structures Algorithms
Data Structures and Algorithm
I appeared for an interview in May 2022.
Round duration - 90 Minutes
Round difficulty - Medium
DS/Algo Questions
2 questions
Kevin is playing a hurdle game where he must jump over hurdles to clear levels. Each level ‘i’ consists of ‘i’ hurdles (e.g., Level 6 has 6 hurdles).
Given the total number ...
The task is to determine the number of levels cleared by Kevin based on the total number of hurdles he has jumped.
Each level 'i' has 'i' hurdles, so Kevin can only reach level 'i' if he has cleared level 'i-1'.
Count the number of levels cleared by dividing the total number of hurdles by the sum of the first 'n' natural numbers.
The formula to calculate the sum of the first 'n' natural numbers is (n * (n + 1)) / 2.
Given a collection of stones, each having a positive integer weight, perform the following operation: On each turn, select the two heaviest stones and smash them toge...
This question is about finding the weight of the last stone after repeatedly smashing the two heaviest stones together.
Sort the array of stone weights in descending order.
Repeatedly smash the two heaviest stones together until there is at most 1 stone left.
If there is 1 stone left, return its weight. Otherwise, return 0.
Round duration - 60 Minutes
Round difficulty - Medium
Live coding
Rearrange a linked list such that all nodes at odd positions are together, followed by all nodes at even positions. You need to return the head of the ...
The task is to rearrange a linked list such that all odd position nodes are together and all even position nodes are together.
Create two separate linked lists, one for odd position nodes and one for even position nodes.
Traverse the original linked list and add the nodes to their respective lists based on their position.
Join the two lists together by pointing the last node of the odd list to the head of the even list.
Re...
Round duration - 60 Minutes
Round difficulty - Easy
Design Zomato - a food delivery platform
Zomato is a platform that connects users with restaurants for food delivery
Users can search for restaurants, view menus, and place orders
Restaurants can register, manage their menus, and receive orders
Delivery partners can sign up to deliver orders
Payment integration is required for seamless transactions
User reviews and ratings can be implemented for restaurant feedback
Location-b...
Round duration - 30 Minutes
Round difficulty - Easy
Cultural
Tip 1 : Prepare for DA/Algo online consistently.
Tip 2 : During interviews, do not hesitate to clarify your doubts, if any. Be in constant communication, explain your thought process.
Tip 3 : Have strong grasp on domain and technologies. Quality over Quantity
Tip 1 : Have super clear idea about the projects you've been part of in case of any cross questions.
Tip 2 : Along with your role do describe how you increased the throughput or reduced cost.
I applied via Campus Placement and was interviewed in Oct 2023. There were 4 interview rounds.
Basic mathematics and analytical thinking questions
Basic programming questions
based on 1 interview
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