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I applied via Naukri.com and was interviewed in Aug 2023. There were 4 interview rounds.
Use a SELECT statement with a GROUP BY clause to remove duplicate records from a table.
Use the DISTINCT keyword in a SELECT statement to retrieve unique records.
Use the GROUP BY clause with appropriate columns to group duplicate records together.
Consider using the ROW_NUMBER() function to assign a unique number to each row and then filter out duplicates based on this number.
I applied via LinkedIn and was interviewed in Apr 2022. There were 3 interview rounds.
Logical thinking and coding mcq which was moderate in difficulty
Hard with data structure concepts
It's like very easy properly prepare for aptitude round
I applied via Company Website and was interviewed in Oct 2023. There were 2 interview rounds.
Good place to interview in the campus
Binary search is a search algorithm that finds the position of a target value within a sorted array.
Binary search works by repeatedly dividing the search interval in half.
It is more efficient than linear search for large arrays.
Example: Searching for the number 7 in the array [1, 3, 5, 7, 9, 11] using binary search.
I applied via Newspaper Ad and was interviewed before Oct 2022. There were 5 interview rounds.
Dont remember the questions. But basic tree questions
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
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.
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 Company Website and was interviewed in Sep 2020. There were 5 interview rounds.
based on 1 interview
Interview experience
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