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I applied via Naukri.com and was interviewed in Oct 2024. There were 2 interview rounds.
Here are some common coding interview questions and answers:
String-based questions: How to find the first unrepeated character in a string, how to determine if two strings are anagrams, or how to convert a numeric string to an integer
Array-based questions: How to find the maximum element in an array, how to sort an array of integers in ascending order, or how to remove duplicates from an array
Linked list-based questions: How to find the middle element of a linked list, how to remove a loop in a linked list, or how to merge two sorted linked lists
General programming questions: How to write a piece of code from requirements to delivery, how to debug a program while it's being used, or how to stay up-to-date with the latest technology developments
Data structure questions: What is a tree in data structure, or what is a binary tree
Palindrome questions: How to determine if a string is a palindrome
In addition to the technical aspects of coding, interviewers may also assess an applicant's communication skills. They may ask how well the applicant explains complex concepts or the method they used in a live coding exercise.
You can also watch this video to learn more about coding interview questions:
Python is a high-level programming language known for its simplicity and readability.
Python is an interpreted language, meaning code is executed line by line.
It supports multiple programming paradigms like procedural, object-oriented, and functional programming.
Python has a large standard library and a thriving community with many third-party libraries available.
It is widely used in web development, data science, artif...
Python is a versatile, easy-to-read language with a large community and extensive libraries.
Python has a simple syntax that makes it easy to learn and read.
Python has a large community of developers, making it easy to find support and resources.
Python has a wide range of libraries and frameworks for various applications, such as web development, data analysis, and machine learning.
Self-intersection occurs when a curve or surface intersects itself at a point.
Self-intersection can occur in computer graphics when rendering complex shapes.
It can also occur in geometry when analyzing curves and surfaces.
Self-intersection can lead to rendering artifacts or inaccuracies in calculations.
Coding allows me to solve complex problems, create innovative solutions, and continuously learn and improve my skills.
Coding enables me to automate tasks and processes, increasing efficiency and productivity.
It provides a creative outlet for problem-solving and allows me to build practical applications.
Coding opens up opportunities for collaboration with other developers and working on exciting projects.
It is a valuabl...
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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
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 LinkedIn and was interviewed in Sep 2022. There were 3 interview rounds.
2 coding , 2 SQL with some quants
Remove redundant parentheses in a expression
Identify the innermost parentheses
Evaluate the expression inside the innermost parentheses
Replace the innermost parentheses with the evaluated expression
Repeat until no more redundant parentheses exist
A coding test on hackerrank with some basic graph problems
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
100 minutes, there were 3 coding questions and some easy to medium level mcq on core subjects
A playlist can be implemented using an array of strings to store the list of songs.
Use an array of strings to store the list of songs in the playlist
Implement functions to add, remove, and shuffle songs in the playlist
Consider using a linked list data structure for more efficient insertion and deletion operations
DSA and lagorithmic optimizations (this is based on team you are joining so questions vary a LOT)
I applied via Referral and was interviewed before Sep 2022. There were 3 interview rounds.
Medium level leetcode questions and some apti very rare but.
Good practice of data structures, algorithms, and operating systems is essential for software engineers.
Regularly practice coding challenges to improve problem-solving skills
Understand the time and space complexity of algorithms
Learn about different data structures and when to use them
Familiarize yourself with operating system concepts like processes, threads, and memory management
Check for cycle in a linked list by using two pointers approach.
Use two pointers, one moving at double the speed of the other.
If there is a cycle, the two pointers will eventually meet.
Alternatively, use a hash set to keep track of visited nodes.
Binary search tree
Linked list
I have experience with a variety of technologies including Java, Python, SQL, and JavaScript.
Java
Python
SQL
JavaScript
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