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I applied via Referral and was interviewed in Jul 2021. There was 1 interview round.
Python objects are instances of classes that contain data and methods.
Python objects are created using the 'class' keyword.
They can contain attributes and methods.
Objects can be instantiated and manipulated in code.
Python is an object-oriented programming language.
Examples of built-in objects include lists, dictionaries, and strings.
String arrays are arrays that store a collection of strings.
String arrays are declared with a specific size or can be dynamically resized.
Each element in the array is a string.
String arrays can be used to store names, addresses, and other text-based data.
Example: String[] names = {"John", "Jane", "Bob"};
Example: String[] addresses = new String[5]; addresses[0] = "123 Main St.";
Statements are instructions that perform a specific action in a program.
Statements are the basic building blocks of a program.
They can be used to assign values to variables, control program flow, and perform calculations.
Examples of statements include if/else statements, for/while loops, and function calls.
Arrays are a collection of similar data types stored in contiguous memory locations.
Arrays can be of any data type, including integers, floats, characters, and objects.
Elements in an array are accessed using an index starting from 0.
Arrays can be one-dimensional, two-dimensional, or multi-dimensional.
Example: string[] names = {"John", "Mary", "Bob"};
Example: int[] numbers = new int[5];
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I applied via Campus Placement and was interviewed in Aug 2022. There were 3 interview rounds.
Questions from trees and linkedin
Reverse a linked list using multiple approaches.
Iterative approach: Use three pointers to reverse the links between nodes.
Recursive approach: Recursively reverse the rest of the list and adjust the links.
Stack approach: Push all the nodes onto a stack and then pop them to create the reversed list.
LRU Cache is a data structure that stores the most recently used items and discards the least recently used items.
Use a hash table to store key-value pairs
Use a doubly linked list to keep track of the order of items
When an item is accessed, move it to the front of the list
When the cache is full, remove the least recently used item from the back of the list
Lookup and insertion should be O(1) time complexity
Implement 2 stacks in an array
Divide the array into two halves
Use top1 and top2 to keep track of top elements of stacks
Push and pop elements from respective halves
Check for overflow and underflow conditions
I applied via Referral and was interviewed in Apr 2024. There were 3 interview rounds.
1 hr, there were some DSA problems
1 hr, there were some DSA problems
25 basic aptitude asked from train,time and work
2 coding questions which was basic and medium questions
2 hours coding round, only 1 person out of 90 cleared
I applied via LinkedIn and was interviewed in Jan 2023. There were 3 interview rounds.
It was 2 coding questions of medium level
Find the longest substring in a given string that does not contain any repeating characters.
Use a sliding window approach to iterate through the string.
Keep track of the characters seen so far using a set.
Update the start and end indices of the window to find the longest substring.
Return the length of the longest substring.
I applied via Campus Placement and was interviewed before Aug 2021. There were 5 interview rounds.
Aptitude consisted of basic quant questions, followed by technical concepts related OOP, .net, java and SQL.
I applied via Naukri.com and was interviewed in Feb 2020. There was 1 interview round.
I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.
Basic MCQS related to sql, basic coding
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