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I applied via LinkedIn and was interviewed in May 2022. There were 3 interview rounds.
Probability of a horse going out of a chessboard in 'n' steps.
The total number of possible moves for a horse is 8.
The probability of going out of the board depends on the position of the horse.
For example, if the horse is at a corner, the probability of going out of the board is higher.
The probability can be calculated using combinatorics and geometry.
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
Maximum sub sequence sum in an array
Use Kadane's algorithm
Initialize max_so_far and max_ending_here to 0
Iterate through the array and update max_ending_here and max_so_far
Return max_so_far
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 0's and 1's only.
Use two pointers, one at the beginning and one at the end of the array.
Swap 0's from the beginning with 1's from the end until the pointers meet.
Alternatively, use a counting sort algorithm to count the number of 0's and 1's and then reconstruct the array.
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 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
I applied via Job Portal and was interviewed before Apr 2023. There were 3 interview rounds.
Test on Hackerrank SQL
Detailed discussion on use cases
I applied via Campus Placement and was interviewed in Nov 2024. There were 2 interview rounds.
The test was easy, containing data interpretation questions
To evaluate your approach, I would estimate the number of cars passing through a busy intersection in a day.
Identify the average number of cars passing through the intersection per minute
Calculate the total number of minutes in a day
Multiply the average cars per minute by total minutes in a day to get an estimate
DSA - Linked List, Trees
I appeared for an interview before Mar 2023.
CTR stands for Click-Through Rate in digital media marketing.
CTR is a metric used to measure the success of an online advertising campaign.
It is calculated by dividing the number of clicks on an ad by the number of times the ad was shown (impressions) and multiplying by 100.
For example, if an ad received 100 clicks and 10,000 impressions, the CTR would be 1%.
A higher CTR indicates that the ad is resonating well with th
Quality score is a metric used to evaluate the quality of something, often used in advertising to measure the relevance and performance of ads.
Quality score is typically used in online advertising platforms like Google Ads to measure the relevance and performance of ads.
It is based on factors such as click-through rate, ad relevance, and landing page experience.
Improving quality score involves optimizing ad content, ta...
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