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Hashing is a technique to map large non-negative integers to smaller indices using a hash function. In the context of collision resolution in hash tables, 'Linear Probing' is empl...
Linear Probing in Hashing is a technique to resolve collisions in hash tables by linearly searching for the next available slot.
Implement a function that takes an array of non-negative integers and returns the corresponding hash table using linear probing.
Use the given hash function H(X) = X mod N to map elements to indices in the hash table.
Handle collisions by linearly probing for the next available slot in the ...
Convert a string representing a Roman numeral into its integer equivalent and return the result.
Roman numerals are represented by seven different symbols...
Convert a Roman numeral string to its integer equivalent.
Create a mapping of Roman numeral symbols to their integer values.
Iterate through the input string and add the corresponding integer values.
Handle cases where a smaller value precedes a larger value (e.g., IV = 4).
You are given an array of integers 'ARR' with a length 'N' and a specific integer 'Target'. Your objective is to determine and return all pairs of elements within the array whose...
Given an array of integers and a target sum, find pairs of elements that add up to the target.
Iterate through the array and for each element, check if the complement (target - current element) exists in a hash set.
If the complement exists, add the pair to the result. If not, add the current element to the hash set.
Handle edge cases like duplicates and negative numbers appropriately.
Return pairs in any order as (a,...
Your task is to implement a queue using two stacks. You are provided with ‘Q’ queries and need to handle them, where each query falls under one of these two operations:
Implement a queue using two stacks with enqueue and dequeue operations.
Use two stacks to simulate a queue - one for enqueue and one for dequeue.
For enqueue operation, push elements onto the enqueue stack.
For dequeue operation, if dequeue stack is empty, pop all elements from enqueue stack and push onto dequeue stack.
Return true for successful enqueue and -1 for empty dequeue.
Example: Enqueue 10, enqueue 20, dequeu...
Given 'N' 2-dimensional matrices and an array ARR
of length N + 1
, where the first N
integers denote the number of rows in each matrix and the last integer represents th...
The task is to find the minimum number of multiplication operations required to multiply a series of matrices together.
Use dynamic programming to solve the problem efficiently.
Create a 2D array to store the minimum number of operations needed to multiply matrices.
Iterate through different combinations of matrices to find the optimal solution.
Consider the dimensions of matrices and their compatibility for multiplic...
You are provided with a 2-dimensional matrix having N
rows and M
columns, containing only 1s (land) and 0s (water). Your goal is to determine the number of islands in th...
Count the number of islands in a 2D matrix of 1s and 0s.
Use Depth First Search (DFS) or Breadth First Search (BFS) to traverse the matrix and identify connected groups of 1s.
Maintain a visited array to keep track of visited cells to avoid counting the same island multiple times.
Increment the island count each time a new island is encountered during traversal.
Consider edge cases such as when the matrix is empty or ...
To join multiple models in a DBMS, use SQL JOIN statements based on common keys.
Identify common keys between the models
Use SQL JOIN statements (INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN) to combine the models based on the common keys
Specify the columns to be selected in the SELECT statement
Given an array of integers, determine the contiguous subarray that produces the maximum product of its elements.
A subarray can be derived from the...
Find the contiguous subarray with the maximum product of elements in an array.
Iterate through the array and keep track of the maximum and minimum product ending at each index.
Update the maximum product by taking the maximum of current element, current element * previous maximum, and current element * previous minimum.
Update the minimum product by taking the minimum of current element, current element * previous ma...
You are given an array/list named 'SEQUENCE', which consists of 'N' integers. The task is to identify all equilibrium indices in this sequence.
An equilibri...
The task is to find the equilibrium indices of a given sequence, where the sum of elements at lower indices is equal to the sum of elements at higher indices.
Iterate through the sequence and calculate the total sum of all elements
Initialize a left sum and right sum as 0
For each index, update the left sum and right sum and check if they are equal
If they are equal, add the index to the equilibrium indices
Return the ...
Given a singly linked list in the form 'L1' -> 'L2' -> 'L3' -> ... 'Ln', your task is to rearrange the nodes to the form 'L1' -> 'Ln' -> 'L2' -> 'L...
The task is to rearrange the nodes of a singly linked list in a specific order without altering the data of the nodes.
Iterate through the linked list to find the middle node using the slow and fast pointer technique.
Reverse the second half of the linked list.
Merge the first and reversed second half of the linked list alternatively to get the desired order.
I applied via Approached by Company and was interviewed in Aug 2024. There were 2 interview rounds.
I applied via Company Website and was interviewed in May 2024. There were 2 interview rounds.
Some Objective questions and 1 Coding Questions
2 Query question and 3 coding questions
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
Objects are instances of classes, which define the structure and behavior of the objects.
Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.
Example: Java, C++, Python are popular languages that support object oriented programming.
Events in JavaScript are actions or occurrences that happen in the browser that the code can respond to.
Events can be triggered by user actions (like clicking a button), browser actions (like page load), or system events (like a timer expiring)
Event listeners are used to listen for and respond to events
Common events include click, mouseover, keydown, submit, etc.
Project , coding question, DBMS
I applied via Indeed and was interviewed in Mar 2024. There was 1 interview round.
Errors while submitting into p21
Incorrect data format or structure
Missing required fields
Invalid data values
Network connectivity issues
Authorization/authentication problems
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
To determine the number of iPhone users, conduct Root Cause Analysis (RCA) by analyzing sales data, market research, and user surveys.
Analyze sales data from Apple to determine the number of iPhones sold
Conduct market research to estimate market share of iPhones compared to other smartphones
Survey iPhone users to gather data on usage patterns and demographics
MCQ Type - Basic Javascript and SQL questions
Platform - doSelect
Determine if a number is prime, meaning it has no divisors other than 1 and itself.
A prime number is greater than 1 and has no positive divisors other than 1 and itself.
Examples of prime numbers: 2, 3, 5, 7, 11.
To check if a number n is prime, test divisibility from 2 to sqrt(n).
If n is divisible by any number in that range, it is not prime.
I applied via LinkedIn and was interviewed before Nov 2023. There were 2 interview rounds.
DSA questions. easy-medium leetcode.
I applied via Referral and was interviewed in Oct 2023. There were 3 interview rounds.
Make a client presentation
I applied via Campus Placement and was interviewed in Sep 2023. There were 4 interview rounds.
Aptitude test was of 1 hr
It was about 1 hr duration
Object-oriented programming paradigm focusing on objects and classes
Encapsulation: Bundling data and methods that operate on the data into a single unit (object)
Inheritance: Ability of a class to inherit properties and behavior from another class
Polymorphism: Ability to present the same interface for different data types
Abstraction: Hiding the complex implementation details and showing only the necessary features
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
Encapsulation helps in hiding the internal state of an object and restricting access to it.
It allows for better control over the data by preventing outside interference.
Encapsulation also promotes code reusability and modularity.
Example: In object-oriented programming, classes encapsulate data fields and methods to ope...
I bring a unique blend of technical skills, problem-solving abilities, and a passion for collaboration that drives successful projects.
Proven experience in multiple programming languages, including Java and Python, demonstrated through successful project completions.
Strong problem-solving skills, exemplified by a project where I optimized an algorithm, reducing processing time by 30%.
Excellent teamwork and communicatio...
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The duration of Springworks interview process can vary, but typically it takes about less than 2 weeks to complete.
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