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SpeedLabs
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I appeared for an interview in Mar 2021.
Round duration - 45 minutes
Round difficulty - Medium
Timing (10 am- 11 am)
For this round I had slightly more time than the last, due to the fact that the weekend fell in between.The interviewer was very very cool and helping this time, something which I kept at the last in my list of probable things that can happen during an interview. Duration of this round was around 45 minutes.
You are given 'N' ropes, each of varying lengths. The task is to connect all ropes into one single rope. The cost of connecting two ropes is the sum of their lengths. Yo...
Connect ropes with minimum cost by merging smallest ropes first.
Sort the array of rope lengths in ascending order.
Merge the two smallest ropes at each step to minimize cost.
Keep track of the total cost as you merge the ropes.
Repeat the merging process until all ropes are connected.
Return the total cost as the minimum cost to connect all ropes.
You are given a binary tree with 'N' integer nodes. Your task is to determine whether this binary tree is a Binary Search Tree (BST).
A Binary Search Tr...
Validate if a given binary tree is a Binary Search Tree (BST) or not.
Check if the left subtree of a node contains only nodes with data less than the node's data.
Check if the right subtree of a node contains only nodes with data greater than the node's data.
Recursively check if both the left and right subtrees are also binary search trees.
Round duration - 30 minutes
Round difficulty - Medium
This round was on call where I was just supposed to answer the HRquestions that were asked. It started with a brief interview with one another and then moved to questions on DBMS, operating systems, computer networks and all. Almost 10-15 questions were asked and I probably answered 90% of them correctly.
Tip 1 : practice on gfg and coding ninjas
Tip 2 : compete in online coding contests
Tip 3 : learn DSA and practice regularly from GFG or leetcode
Tip 1 : put your entire valuable experience in brief
Tip 2 : put the handle of you competitive coding profiles
Top trending discussions
I applied via Referral and was interviewed in Jul 2024. There were 3 interview rounds.
SQL- 1 departments with no users
2 dept_id and their respective no. of users
DSA1: Most frequent no. in an array
DSA2: Zero Sum subarray exists
I applied via Naukri.com and was interviewed in Jul 2022. There were 3 interview rounds.
It was on hacker rank
It was a aptitude test taken by me of the new and all the response and the of new
I applied via Campus Placement and was interviewed in Aug 2022. There were 4 interview rounds.
2 coding questions with aptitude question(logical aptitude and quantitative aptitude)
This was a Machine Coding. We need to design a system and then they will check our design by running test cases. It was 2.5 hrs long.
I applied via Naukri.com and was interviewed before Oct 2022. There were 4 interview rounds.
Implement login with Google SSO, show emails in a single place
JWT can be implemented by generating a token with user information and a secret key, then verifying the token using the same secret key.
Generate a JWT token with user information and a secret key
Include necessary claims like expiration time, issuer, etc.
Verify the JWT token using the same secret key
Handle token expiration and refresh if needed
Middleware in Express is a function that has access to the request and response objects.
Create a middleware function using app.use() method in Express.
Middleware functions have access to the request object (req), the response object (res), and the next middleware function in the application's request-response cycle.
Example: app.use((req, res, next) => { console.log('This is a middleware function'); next(); });
Lazy loading in Angular delays loading of modules until they are needed
Lazy loading helps improve performance by only loading modules when they are required
It is achieved by using the loadChildren property in the route configuration
Lazy loaded modules are loaded asynchronously when the user navigates to the corresponding route
Server-side rendering (SSR) in Angular can be enabled by using Angular Universal.
Install Angular Universal using Angular CLI
Create a new Angular Universal project
Update app.module.ts to include server-side rendering
Build and run the Angular Universal project
I applied via Referral and was interviewed before Oct 2023. There were 3 interview rounds.
Use a hash set to find duplicates in an array of strings.
Create a hash set to store unique elements.
Iterate through the array and check if the element is already in the hash set.
If it is, then it is a duplicate. If not, add it to the hash set.
Find the single duplicate element in an array of strings with length n-1.
Iterate through the array and use a HashSet to keep track of elements seen so far.
If an element is already in the HashSet, that is the duplicate element.
Return the duplicate element once found.
Create a student support system
Design an order and payments system for an EdTech company
Allow users to browse and select courses
Implement a shopping cart for users to add courses
Integrate payment gateways for secure transactions
Provide order confirmation and receipt to users
Allow users to track their order status
I appeared for an interview in Oct 2024.
Explain about DSA and its example in realtime.
Basic coding and MySQL queries. Like Types of join, having and where difference etc.
posted on 16 Sep 2021
I appeared for an interview in Dec 2020.
Round duration - 120 minutes
Round difficulty - Easy
Given an array of integers ARR
of length N
and an integer Target
, your task is to return all pairs of elements such that they add up to the Target
.
The first line ...
Given an array of integers and a target, find all pairs of elements that add up to the target.
Iterate through the array and for each element, check if the target minus the element exists in a hash set.
If it exists, add the pair to the result. If not, add the element to the hash set.
Handle cases where the same element is used twice in a pair.
Return (-1, -1) if no pair is found.
Tip 1 : Have projects on your resume.
Tip 2 : Good to have internships
Tip 3 : Practice a lot
Tip 1 : Have good projects
Tip 2 : Have knowledge of everything you wrote
posted on 16 Sep 2021
I appeared for an interview in Feb 2021.
Round duration - 70 Minutes
Round difficulty - Medium
Timing was 9:15AM. Platform was not very good. Questions were not well explained.
Given a specified number of intervals, where each interval is represented by two integers denoting its boundaries, the task is to merge all overlapping interv...
Merge overlapping intervals and return sorted list of merged intervals.
Identify overlapping intervals based on start and end times
Merge overlapping intervals to form new intervals
Sort the merged intervals in ascending order of start times
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...
Find all possible paths for a rat in a maze to reach its destination, given a matrix representation of the maze.
Use backtracking to explore all possible paths from the starting position to the destination.
Keep track of the current path and explore all possible directions at each step.
Terminate the exploration when reaching the destination or hitting a blocked cell.
Return the list of valid paths found, sorted in alphabe
Given a string STR
consisting of lowercase English letters, your task is to return all permutations of the given string in lexicographically increasing order.
Return all permutations of a given string in lexicographically increasing order.
Generate all permutations of the given string using backtracking algorithm.
Sort the permutations lexicographically before printing them.
Ensure the string contains unique characters for correct output.
Handle multiple test cases efficiently.
Example: For input 'bca', output 'abc acb bac bca cab cba'.
Tip 1 : Prepare maximum algorithms.
Tip 2 : Deep knowledge of data structure.
Tip 3 : OOPS is must.
Tip 1 : Keep it short.
Tip 2 : Mention only your own projects.
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