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I applied via Approached by Company and was interviewed in Feb 2024. There were 2 interview rounds.
Basiic Aptitude with CAT
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I appeared for an interview before Jan 2021.
Round duration - 60 minutes
Round difficulty - Easy
I couldn't find an optimal approach to the first question, so she skipped that question and proceeded to next questions. Remaining questions I have answered satisfactorily.
Given an array/list of positive integers and an integer K, determine if there exists a subset whose sum equals K.
Provide true
if such a subset exists, otherwise r...
Given an array of positive integers and an integer K, determine if there exists a subset whose sum equals K.
Use dynamic programming to solve this problem efficiently
Create a 2D array to store if a subset with a particular sum exists
Iterate through the array and update the 2D array accordingly
Check if the value at the end of the iteration is true for the given K
Given an undirected and disconnected graph G(V, E) where V vertices are numbered from 0 to V-1, and E represents edges, your task is to output the BFS traversal starting from the ...
BFS traversal in a disconnected graph starting from vertex 0.
Implement BFS algorithm to traverse the graph starting from vertex 0.
Use a queue to keep track of visited nodes and their neighbors.
Ensure to print the traversal sequence in the correct order.
Handle disconnected components by checking for unvisited nodes.
Follow the BFS approach of exploring neighbors before moving to the next level.
Round duration - 60 minutes
Round difficulty - Easy
I told that my strength is problem solving and I can always find a way when there is a bottle-neck. Gave some examples of my experiences while doing my assignments.
Given a string STR
consisting of words separated by spaces, your task is to replace all spaces between words with the characters "@40".
The first line contains an integ...
Replace spaces in a string with '@40'.
Iterate through each character in the string
Replace spaces with '@40'
Return the modified string
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I appeared for an interview before Jan 2021.
Round duration - 60 minutes
Round difficulty - Easy
Technical Interview Round with questions based on Data structures, OOPS and SQL.
You are provided with a linked list of integers. Your task is to implement a function that deletes a node located at a specified position 'POS'.
The first line co...
Implement a function to delete a node from a linked list at a specified position.
Traverse the linked list to find the node at the specified position.
Update the pointers of the previous and next nodes to skip the node to be deleted.
Handle edge cases such as deleting the head or tail of the linked list.
Ensure to free the memory of the deleted node to avoid memory leaks.
SQL query to find the nth highest salary
Use the ORDER BY clause to sort salaries in descending order
Use the LIMIT and OFFSET clauses to skip the first n-1 highest salaries
Combine the above steps in a single query to find the nth highest salary
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
OOP focuses on creating objects that interact with each other to solve problems.
Key concepts include encapsulation, inheritance, and polymorphism.
Encapsulation involves bundling data and methods that operate on the data into a single unit.
Inheritance allows classes to inherit at...
Round duration - 60 minutes
Round difficulty - Easy
Was asked me about my favorite technologies, What i liked about Facebook. And asked me to design a cinema ticket reservation web site like the one satyam has.
Given an array containing N
distinct positive integers and a number K
, determine the Kth largest element in the array.
N = 6, K = 3, array = [2, 1, 5, 6, 3, ...
Find the Kth largest element in an array of distinct positive integers.
Sort the array in non-increasing order and return the Kth element.
Handle multiple test cases efficiently.
Ensure all elements in the array are distinct.
Virtual functions are functions in a base class that are overridden in derived classes to achieve runtime polymorphism.
Virtual functions are declared in a base class with the 'virtual' keyword.
They are overridden in derived classes using the 'override' keyword.
They allow a function to be called based on the runtime type of an object.
Virtual functions enable dynamic binding and late binding in C++.
Example: virtual void ...
Design a Cinema Ticket Reservation System
Use a database to store movie information, showtimes, and seat availability
Allow users to search for movies, select showtimes, and choose seats
Implement a payment system for ticket purchases
Send confirmation emails with QR codes for ticket validation
You can find a defective ball among 10 given balls in 2 attempts using a two-pan balance scale.
Divide the 10 balls into two groups of 5 each.
Weigh the two groups on the balance scale.
If one group is heavier, it contains the defective ball. If they are equal, the defective ball is in the remaining 5 balls.
Divide the group of 5 balls with the defective one into two groups of 2 and 3 balls.
Weigh the two groups on the bala...
Round duration - 30 minutes
Round difficulty - Easy
HR round that lasted for about 30 minutes. The interviewer asked me questions to know more about me and a puzzle.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I appeared for an interview before Jan 2021.
Round duration - 90 minutes
Round difficulty - Medium
It was conducted in Hacker rank which consisted of 10 aptitude questions that included C, C++, Java MCQ. 2 programming questions were also given.
Given an N x M
matrix filled with integers, determine the minimum sum obtainable from a path that starts at a specified cell (x, y)
and ends at the top left corner of t...
The problem involves finding the minimum sum path from a specified cell to the top left corner of a matrix.
Start from the specified cell and calculate the minimum sum path to reach the top left corner using dynamic programming.
Consider the three possible moves: down, right, and down-right diagonal.
Keep track of the minimum sum at each cell and update it based on the minimum of the three possible moves.
Finally, the mini...
Given an integer N
representing the number of pairs of parentheses, find all the possible combinations of balanced parentheses using the given number of pairs.
Generate all possible combinations of balanced parentheses for a given number of pairs.
Use backtracking to generate all possible combinations of balanced parentheses.
Keep track of the number of open and close parentheses used in each combination.
Recursively generate combinations by adding open parentheses if there are remaining, and closing parentheses if the number of open parentheses is greater than the number of clo...
Round duration - 60 minutes
Round difficulty - Medium
Technical round with questions based on data structures, oops and networking.
Create a program that counts and prints the total number of specific character types from user input. Specifically, you need to count lowercase English alphabets, numeric digi...
Create a program to count lowercase alphabets, digits, and white spaces from user input until '$' is encountered.
Read characters from input stream until '$' is encountered
Count lowercase alphabets, digits, and white spaces separately
Print the counts of each character type as three integers separated by spaces
Given an unsorted array containing 'N' integers, you are required to find 'K' largest elements from the array and return them in non-decreasing order.
The fir...
Find K largest elements in an unsorted array and return them in non-decreasing order.
Sort the array in non-decreasing order.
Return the last K elements of the sorted array.
To check internet connection on a system, you can use various methods like pinging a website or checking network status.
Use ping command to check connectivity to a website (e.g. ping www.google.com)
Check network status using network settings or command line tools
Try accessing a website or online service to verify internet connection
When you type a URL in a web browser, the browser sends a request to the server hosting the website, which then responds with the necessary files to display the webpage.
Browser checks cache for DNS resolution
If not found, browser sends a DNS query to resolve the domain name to an IP address
Browser establishes a TCP connection with the server
Browser sends an HTTP request to the server for the webpage
Server processes the...
Round duration - 60 minutes
Round difficulty - Medium
Technical round with questions based on data structures, oops and networking.
Ninja is learning about sorting algorithms, specifically those that do not rely on comparisons. Can you help Ninja implement the counting sort algorithm?
Implement counting sort algorithm to sort an array of integers without comparisons.
Count the frequency of each element in the input array.
Calculate the prefix sum of frequencies to determine the position of each element in the sorted array.
Place each element in its correct position based on the prefix sum.
Time complexity of counting sort is O(n+k), where n is the number of elements and k is the range of input.
Example: ...
The Fibonacci series has applications in various fields such as mathematics, computer science, art, and nature.
Used in algorithms for optimization problems and dynamic programming.
Found in nature, such as the arrangement of leaves on a stem, the branching of trees, and the spiral shapes of shells.
Applied in financial markets for predicting stock prices and analyzing market trends.
Utilized in art and design for creating
Round duration - 30 minutes
Round difficulty - Easy
HR round where the interviewer asked questions to know more about me.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Profitability analysis in the credit cards business involves evaluating the financial performance and returns generated by credit card operations.
Profitability analysis helps assess the effectiveness of credit card strategies and identify areas for improvement.
Key metrics for profitability analysis include net interest margin, fee income, credit losses, and operating expenses.
Comparing profitability across different cu...
I applied via Campus Placement
To find the average profit on a given loan, divide the total profit by the number of loans.
Calculate the total profit earned on the loan
Determine the number of loans
Divide the total profit by the number of loans to find the average profit
Example: If the total profit earned on 10 loans is $1000, the average profit per loan is $100
When choosing between two marketing schemes, it's important to consider the target audience, budget, and goals.
Consider the target audience and which scheme would be more appealing to them
Evaluate the budget and determine which scheme is more cost-effective
Assess the goals of the marketing campaign and choose the scheme that aligns best with those goals
Conduct market research to gather data on the effectiveness of each...
Setting up a new ATM involves various costs and considerations such as location, equipment, maintenance, and security.
Location is a crucial factor in determining the success of an ATM. It should be easily accessible and visible to potential users.
Equipment costs include the ATM machine, software, and communication systems.
Maintenance costs include regular servicing, cash replenishment, and repairs.
Security measures suc...
I asked my peers for help when I was struggling with a project deadline.
I explained my situation and asked for their input
They were able to offer suggestions and resources that helped me meet the deadline
I expressed my gratitude and offered to return the favor in the future
I had to learn a new programming language for a project
Researched online resources and tutorials
Practiced coding exercises to gain proficiency
Collaborated with team members who were experienced in the language
Implemented the language in the project successfully
I led a team to complete a project in 3 days instead of 5
Set clear goals and priorities
Divide tasks among team members based on strengths
Communicate regularly to ensure progress and address issues
Worked overtime to meet the deadline
Received positive feedback from the client
posted on 30 Aug 2016
I applied via Campus Placement
based on 1 interview
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