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I applied via Campus Placement
Regex for email validation
Start with a string of characters followed by @ symbol
Followed by a string of characters and a period
End with a string of characters with a length of 2-6 characters
Allow for optional subdomains separated by periods
Disallow special characters except for . and _ in username
Print prime numbers in a given range and optimize the solution.
Use Sieve of Eratosthenes algorithm to generate prime numbers efficiently
Start with a boolean array of size n+1, mark all as true
Loop through the array and mark all multiples of each prime as false
Print all the indexes that are still marked as true
Find angle between hour and minute hand in a clock given the time.
Calculate the angle made by the hour hand with respect to 12 o'clock position
Calculate the angle made by the minute hand with respect to 12 o'clock position
Find the difference between the two angles and take the absolute value
If the angle is greater than 180 degrees, subtract it from 360 degrees to get the smaller angle
To un-hash a string, use a reverse algorithm to convert the hash back to the original string.
Create a reverse algorithm that takes the hash as input and outputs the original string
Use the same logic as the hash function but in reverse order
If the hash function used a specific algorithm, use the inverse of that algorithm to un-hash the string
I applied via Referral and was interviewed before May 2020. There was 1 interview round.
To understand the supply of restaurants in a particular area of a city, we can use various methods.
Collect data from online directories like Yelp, Zomato, etc.
Conduct surveys to gather information about the number of restaurants in the area.
Analyze the population density and demographics of the area to estimate the demand for restaurants.
Check the number of restaurant permits issued by the local government.
Use GIS mapp...
I applied via Referral and was interviewed before Sep 2021. There were 2 interview rounds.
I applied via Company Website and was interviewed in May 2024. There were 3 interview rounds.
Logic reasoning aptitude quant os dbms cn
Arrays, strings, linked list
I applied via LinkedIn and was interviewed before May 2020. There was 1 interview round.
I appeared for an interview before Sep 2020.
Round duration - 60 Minutes
Round difficulty - Easy
A thief is planning to rob a store and can carry a maximum weight of 'W' in his knapsack. The store contains 'N' items where the ith item has a weight of 'wi' and a value of...
Yes, the 0/1 Knapsack problem can be solved using dynamic programming with a space complexity of not more than O(W).
Use a 1D array to store the maximum value that can be stolen for each weight capacity from 0 to W.
Iterate through each item and update the array based on whether including the item would increase the total value.
The final value in the array at index W will be the maximum value that can be stolen.
Given an array or list of integers 'ARR', identify the second largest element in 'ARR'.
If a second largest element does not exist, return -1.
ARR = [2,...
Find the second largest element in an array of integers.
Iterate through the array to find the largest and second largest elements.
Handle cases where all elements are identical.
Return -1 if a second largest element does not exist.
Round duration - 60 Minutes
Round difficulty - Easy
System Design Round
Design a scalable system for Twitter with key components and architecture.
Use microservices architecture for scalability and fault isolation.
Key components include user service, tweet service, timeline service, and notification service.
Use a distributed database like Cassandra for storing tweets and user data.
Implement a message queue like Kafka for handling real-time updates and notifications.
Use a caching layer like ...
Round duration - 30 Minutes
Round difficulty - Easy
It is just a formality
Tip 1 : System Design
Tip 2 : Practice questions from leetcode
Tip 3 : Have some projects.
Tip 1 : Mention what you know
Tip 2 : Good previous work to showcase
posted on 7 Apr 2024
Technical mcq from basic of dsa
Question from DSA and time will given to solve it
posted on 17 Sep 2024
Data structure and aptitude
10 mins given for prepare for the problem and after completing the problem (program ) they asked to explain and asked to upgrade the program by reduce time complexity
Reverse a string without using built-in functions or for loops
Use recursion to reverse the string
Pass the substring excluding the first character to the recursive function
Base case: return the character itself if the length of the string is 1
Concatenate the last character of the string with the result of the recursive call
I am a passionate software developer with experience in Java, Python, and web development.
Experienced in Java and Python programming languages
Skilled in web development technologies like HTML, CSS, and JavaScript
Worked on projects involving database management with SQL
Yes, I am okay with agreement.
I am comfortable with signing agreements related to software development projects.
I understand the importance of agreements in protecting both parties involved in a project.
I am willing to review and negotiate agreements to ensure they are fair and reasonable.
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