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I applied via Referral and was interviewed in Apr 2021. There was 1 interview round.
I will remain calm, listen actively, empathize, apologize, and offer a solution.
Remain calm and professional
Listen actively to understand their issue
Empathize with their frustration
Apologize for any inconvenience caused
Offer a solution to resolve the issue
If necessary, escalate the issue to a supervisor
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I applied via LinkedIn and was interviewed before May 2023. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Oct 2019. There were 4 interview rounds.
The program capitalizes the first letter of each reversed word in a sentence.
Split the sentence into an array of words using space as a delimiter.
Reverse each word in the array and capitalize the first letter.
Join the modified words back into a sentence.
Maximize clothes donation between two sets of countries with one-to-one relationships.
Model the problem as a bipartite graph where one set represents donors and the other set represents recipients.
Use algorithms like the Hungarian algorithm or maximum flow to find the optimal matching.
Example: If country A donates 5 clothes to country B, and country C donates 6 to country D, ensure no overlaps.
Consider edge cases where...
Algorithms for manipulating arrays and strings in coding
Use sorting algorithms like quicksort and mergesort for arrays
Use string manipulation functions like substring and replace for strings
Use dynamic programming for optimizing solutions to array and string problems
Designing a large scale Ad Server
Use distributed systems for scalability
Implement caching for faster ad delivery
Ensure high availability and fault tolerance
Use real-time bidding for efficient ad placement
Implement fraud detection mechanisms
Ensure compliance with privacy regulations
I applied via Campus Placement
I am an avid traveler and have visited over 20 countries
I love experiencing new cultures and trying new foods
I have backpacked through Europe and Asia
I have volunteered in orphanages in Cambodia and Nepal
Mobile advertising platform
Adtech
Mobile marketing
App monetization
Optimize lift usage to reduce wait times for employees entering a 10-floor building.
Implement a smart scheduling system that prioritizes lifts based on the number of people waiting on each floor.
Introduce a destination dispatch system where employees select their floor before entering the lift, grouping them by destination.
Increase the number of lifts during peak hours or consider adding express lifts that service only...
Find the maximum sum of a contiguous subarray in an integer array using Kadane's algorithm.
Use Kadane's algorithm for an efficient O(n) solution.
Initialize two variables: maxSum and currentSum.
Iterate through the array, updating currentSum and maxSum.
Example: For nums = [-2,1,-3,4,-1,2,1,-5,4], maxSum = 6 (subarray [4,-1,2,1]).
If all numbers are negative, return the largest single element.
Endianness refers to the byte order of a system. It determines how multi-byte data types are stored in memory.
Little-endian systems store the least significant byte first, while big-endian systems store the most significant byte first.
Endianness can affect the way data is transmitted between systems.
To determine the endianness of a system, you can use the byte order mark (BOM) or write a test program that checks the by...
Sort an array of 0s and 1s in place using a two-pointer approach for optimal performance.
Use two pointers: one for 0s and one for 1s.
Initialize left pointer at the start and right pointer at the end.
Iterate through the array, swapping elements as needed.
Example: For [1, 0, 1, 0], after sorting, it becomes [0, 0, 1, 1].
Heaps are data structures used to efficiently find the maximum or minimum element in a collection.
Max heap: parent nodes are always greater than or equal to child nodes
Min heap: parent nodes are always smaller than or equal to child nodes
Heaps are commonly used in priority queues and sorting algorithms
Heap operations include insert, delete, and extract max/min
Example: An array [3, 8, 2, 5, 1, 4, 6] can be represented a...
Find 3 numbers in an array where a+b=c.
Loop through the array and check for all possible combinations of a and b.
Use a hash table to store the values of a and b, and check if c is present in the hash table.
Sort the array and use two pointers to find a and b, and then check if their sum equals c.
I applied via Referral and was interviewed before Jan 2022. There were 2 interview rounds.
Viscosity index is a measure of an oil's resistance to change in viscosity with temperature.
Viscosity index is used to determine how well an oil maintains its viscosity as temperature changes.
Higher viscosity index indicates less change in viscosity with temperature.
Lower viscosity index indicates greater change in viscosity with temperature.
Viscosity index is important in lubrication to ensure optimal performance acro...
API stands for American Petroleum Institute and it sets standards for engine oil and lubricants.
API is a set of standards developed by the American Petroleum Institute for engine oil and lubricants.
API standards ensure that engine oil and lubricants meet certain quality and performance requirements.
API standards are denoted by a two-letter code, such as SN or CJ-4.
API standards are regularly updated to keep up with cha...
I applied via Naukri.com and was interviewed in Jul 2022. There were 2 interview rounds.
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