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Amazon
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Check if any 3 elements in an array add up to a given number
Sort the array in ascending order
Use nested loops to iterate through all possible combinations of 3 elements
Check if the sum of the 3 elements equals the given number
Return true if a match is found, else false
Given a number, find the nearest perfect square using modified binary search.
Start with low=0 and high=num.
While low<=high, find mid=(low+high)/2.
If mid*mid==num, return mid.
If mid*mid
If mid*mid>num, update high=mid-1.
Return the closest perfect square to num.
Count occurrences of two nodes with same horizontal distance in a binary tree
Traverse the tree using BFS or DFS and keep track of horizontal distance of each node
Store nodes with same horizontal distance in a hash table and increment count if collision occurs
Recursively traverse left and right subtrees with updated horizontal distance
Time complexity: O(n), Space complexity: O(n)
Program to check if a linked list is a palindrome
Traverse the linked list and push each element onto a stack
Traverse the linked list again and compare each element with the top of the stack
If all elements match, the linked list is a palindrome
Test methods for stress testing of Furniture class
Create a large number of Furniture objects and check for memory leaks
Simulate heavy usage by continuously calling methods and check for performance issues
Test the Furniture class with maximum allowed input values and check for any errors or crashes
Considerations for developing an application for computer aided competitive exams
User-friendly interface for easy navigation
Accurate and reliable question bank
Timed tests to simulate real exam conditions
Option to save and resume tests
Detailed performance analysis and feedback
Compatibility with different devices and operating systems
Regular updates and bug fixes
Developer should consider the security of the application t...
Reverse every 3 nodes in a singly linked list using recursion
Create a recursive function that takes in a node and a count
If count is less than 3, return the node
Reverse the first 3 nodes and call the function recursively with the 4th node and count 1
Connect the reversed nodes to the rest of the list
Return the new head of the reversed list
I want to learn/change 3 things about myself
Improve my communication skills
Develop better time management habits
Learn a new programming language
I applied via campus placement at Lovely Professional University (LPU)
Basic DSA, Sorting question , SQl Query , Stack,queue, linked list, etc
posted on 9 Feb 2024
I applied via LinkedIn and was interviewed in Jan 2024. There were 3 interview rounds.
Easy Interview basic questions
I applied via Company Website and was interviewed in May 2023. There were 3 interview rounds.
Very Easy questions just do it
SDE 1 is an entry-level position where candidates gain foundational skills before advancing to SDE 2.
SDE 1 focuses on learning and building foundational skills in software development.
SDE 2 requires more experience and expertise in software development.
Advancing from SDE 1 to SDE 2 is a common career progression in tech companies.
SDE 1 roles often involve working on smaller projects or components of larger projects.
SDE...
No, I believe in standing up against bullying and supporting those who are being bullied.
I do not support bullying in any form and believe in treating others with respect and kindness.
I would try to intervene and help the person being bullied, either by talking to the bully or seeking help from a teacher or supervisor.
I believe in creating a positive and inclusive environment where everyone feels safe and respected.
I applied via LinkedIn and was interviewed in Aug 2023. There were 3 interview rounds.
2 medium level and 1 hard question from dsa
Promises, async/await, and event emitters are all ways to handle asynchronous operations in JavaScript.
Promises provide a way to handle asynchronous operations by returning a promise object that can be resolved or rejected.
Async/await is a syntax for working with promises that makes code easier to read and write.
Event emitters allow you to create custom events that can be triggered and listened for in your code.
Design a system like Facebook
Create a user registration and login system
Implement a news feed for users to see updates from friends
Allow users to create and join groups
Include features like messaging, commenting, and liking posts
Implement privacy settings for users to control who can see their content
I was interviewed in Nov 2021.
Round duration - 60 minutes
Round difficulty - Easy
The first round was a coding round. 2 DSA based questions were asked.
Greedy approach can be applied to solve this problem. We sort the start and end time pairs for each meeting on the basis of the end time. Then we compare if the next meeting's start time is greater than the previous meeting's end time. If the start time is greater, we can count this meeting and we increase our meeting counter otherwise this meeting can't take place. In this manner, we traverse through all the meeting p...
The brute force solution would be to do a linear search and find the element.
Time Complexity : O(n)
The brute force solution can be optimized using Binary Search. The idea is to find the bitonic point k which is the index of the maximum element of a given sequence. If the element to be searched is greater than the maximum element return -1, else search the element in both halves.
Steps :
1. Find th...
Round duration - 45 minutes
Round difficulty - Medium
The second round was a system design round.
Design Stackoverflow application. Given basic requirements for the app. We need to provide high level design for the requirements. also low level design if asked.
Tip 1: Firstly, remember that the system design round is extremely open-ended and there’s no such thing as a standard answer. Even for the same question, you’ll have a totally different discussion with different interviewers.
Tip 2: Before you jump into the solution always clarify all the assumptions you’re making at the beginning of the interview. Ask questions to identify the scope of the system. This will clear the i...
Round duration - 30 minutes
Round difficulty - Easy
This was a typical managerial round.
Q1. Why Groupon?
Q2. Where do you see yourself after next 5 years?
Tip 1 : The cross questioning can go intense some time, think before you speak.
Tip 2 : Be open minded and answer whatever you are thinking, in these rounds I feel it is important to have opinion.
Tip 3 : Context of questions can be switched, pay attention to the details. It is okay to ask questions in these round, like what are the projects currently the company is investing, which team you are mentoring. How all is the
Tip 1 : Prepare coding questions on Arrays as much as possible. and go through few videos to design few daily use applications like Stackoverflow, Whatsapp, Instagram etc.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
posted on 19 Aug 2022
Hackerrank coding test of 90 mins duration, with few MCQ (input/output type) 1 SQL question and 2 coding problems of easy and mediium difficulty.
I applied via Newspaper Ad and was interviewed in Apr 2024. There were 2 interview rounds.
The round was good and nice
The round was good and nice
I applied via LinkedIn and was interviewed before Jul 2023. There were 2 interview rounds.
Moderate questions can be found on gfg
4 graph question and one DP
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