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str in C is a data type used to represent strings as arrays of characters.
str in C is typically declared as an array of characters, terminated by a null character '\0'.
Functions like strcpy(), strcmp(), and strlen() are commonly used with str in C.
Example: char str[10] = "hello"; // Declaration of a string in C
Pointers in C are variables that store memory addresses of other variables.
Pointers are used to access and manipulate memory directly.
They are denoted by an asterisk (*) before the variable name.
Example: int *ptr; // declares a pointer to an integer variable
I was interviewed before Nov 2020.
Round duration - 20 Minutes
Round difficulty - Easy
very easy questions related to web development. 1 coding question
Given a linked list where each node has two pointers: the first points to the next node in the list, and the second is a random pointer that can point to any node ...
Create a deep copy of a linked list with random pointers without using references of original nodes.
Iterate through the original linked list and create a new node for each node in the list.
Store the mapping of original nodes to new nodes in a hashmap to handle random pointers.
Update the random pointers of new nodes based on the mapping stored in the hashmap.
Return the head of the copied linked list.
Round duration - 150 Minutes
Round difficulty - Medium
A thief is planning to steal from several houses along a street. Each house has a certain amount of money stashed. However, the thief cannot loot two adjacent houses. Determi...
Determine the maximum amount of money a thief can steal from houses without looting two consecutive houses.
Create an array 'dp' to store the maximum money that can be stolen from each house without looting two consecutive houses.
Iterate through the houses and update 'dp' based on the maximum money that can be stolen from the current house.
Return the maximum value in 'dp' as the answer.
Yes, I can design a website similar to Amazon by focusing on user-friendly interface, robust search functionality, secure payment options, and personalized recommendations.
Focus on user-friendly interface with easy navigation
Implement robust search functionality with filters and sorting options
Provide secure payment options with encryption and fraud protection
Include personalized recommendations based on user behavior
Round duration - 10 Minutes
Round difficulty - Easy
Tip 1 : Prepare for common interview questions
Tip 2 : Practice, practice, practice
Tip 1 : Don't Put Everything on There.
Tip 2 : Put the Best Stuff “Above the Fold”
I applied via Walk-in and was interviewed before Jun 2022. There were 3 interview rounds.
Coding test of your skills and how well can you cope up with a problem given.
LAC stands for Location Area Code, a unique identifier for a group of cells in a mobile network.
LAC helps in identifying the location of a mobile device within a cellular network.
It is used for handover procedures when a device moves between different cells.
In a network with 3 nodes, each node would have a unique LAC assigned to it.
Reverse the order of strings in an array
Use the reverse() method to reverse the array
Example: ['apple', 'banana', 'cherry'] -> ['cherry', 'banana', 'apple']
I applied via LinkedIn and was interviewed before Oct 2022. There were 3 interview rounds.
Ed-tech refers to the use of technology to facilitate learning and education.
Ed-tech includes online learning platforms, educational apps, and digital tools for teaching and learning.
It aims to enhance the educational experience, make learning more accessible, and improve student outcomes.
Examples of ed-tech companies include Khan Academy, Coursera, and Duolingo.
Digital marketing is the use of online channels to promote products or services to a targeted audience.
Involves using social media, email, websites, and search engines for marketing purposes
Includes strategies such as SEO, SEM, content marketing, and influencer marketing
Allows for targeted advertising based on demographics, interests, and behavior
Provides measurable results through analytics and tracking tools
I applied via Naukri.com and was interviewed in Aug 2022. There were 2 interview rounds.
Edtech industry refers to the use of technology in education to enhance learning and teaching experience.
Edtech includes online learning platforms, educational apps, and digital tools for teachers.
The industry has seen significant growth due to the COVID-19 pandemic and the shift to remote learning.
Examples of edtech companies include Coursera, Khan Academy, and Duolingo.
Edtech has the potential to improve access to ed...
I applied via Referral and was interviewed before Oct 2023. There were 3 interview rounds.
Use a hash set to find duplicates in an array of strings.
Create a hash set to store unique elements.
Iterate through the array and check if the element is already in the hash set.
If it is, then it is a duplicate. If not, add it to the hash set.
Find the single duplicate element in an array of strings with length n-1.
Iterate through the array and use a HashSet to keep track of elements seen so far.
If an element is already in the HashSet, that is the duplicate element.
Return the duplicate element once found.
Create a student support system
Design an order and payments system for an EdTech company
Allow users to browse and select courses
Implement a shopping cart for users to add courses
Integrate payment gateways for secure transactions
Provide order confirmation and receipt to users
Allow users to track their order status
I applied via Referral and was interviewed in Jul 2024. There were 3 interview rounds.
SQL- 1 departments with no users
2 dept_id and their respective no. of users
DSA1: Most frequent no. in an array
DSA2: Zero Sum subarray exists
I applied via Referral and was interviewed before Nov 2020. There was 1 interview round.
I applied via Company Website and was interviewed in Sep 2022. There were 4 interview rounds.
UI given, need to make the UI in react with scalability in mind.
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