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I applied via Campus Placement and was interviewed in Oct 2023. There were 4 interview rounds.
60 min of Aptitude test
30 min Coding test 2 que
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I appeared for an interview before Dec 2020.
Round duration - 90 Minutes
Round difficulty - Medium
Coding round was conducted in the morning for 1.5 hours from 10:00 am to 11:30 am. Exam was conducted on HACKEREARTH which is a user-friendly platform with various edge test-cases. Since exam was done through online mode due to COVID-19, therefore camera was on for invigilation. A well working camera and microphone were needed for successful completion of exam.
Ninja is provided with a dictionary of words, WORDS
, and a sentence, SENTENCE
, which consists of words separated by spaces. The goal is to minimize the size of ...
The goal is to minimize the size of a sentence by replacing words with prefixes from a given dictionary.
Iterate through each word in the sentence and check if a prefix exists in the dictionary
Replace the word with the smallest prefix found in the dictionary
Repeat the process for all words in the sentence
Tip 1 : Do not totally depend on past interview questions or as such unless and until you have a strong foundation. Just build the foundation first in starting months.
Tip 2 : More focus should be on problem-solving skills. Develop the skills of using applications.(Eg.: Where one should use Hashmap, Arraylist, etc.)
Tip 3 : Try to solve the problem on your own. Just sink yourself into the question so much that you don't need to look for the solution.(Figure out solution in your own way).
Tip 4 : Regarding project, quantity doesn't matter but what matters the most is you should know about the project from start to end. Able to explain the project clearly. Be ready with technical as well as Behavioral questions.
Tip 1 : Get rid of irrelevant topics or headings.(Eg. Stood 1st in Annual Sack Race Competition.)
Tip 3 : Make sure you don't keep anything which create problem at time of Interview.
Tip 4 : Short and crisp Resume with each spelling checked twice.
Tip 5 : Keep updating your resume based on addition of Internship/Projects, etc.
Tip 6 : Keep the file name(Resume saved as pdf or any format) decent too.
I appeared for an interview before Sep 2020.
Round duration - 90 minutes
Round difficulty - Medium
The coding round consisted of 3 coding questions. 1st question was of 20 marks, 2nd and 3rd of 50 marks.
Given an array 'ARR' consisting of 'N' positive integers, determine the minimum number of operations needed to make all elements of the array equal. You may ...
Determine minimum operations to make all array elements equal using addition, subtraction, multiplication, or division.
Iterate through array to find the minimum and maximum values
Calculate the difference between the maximum and minimum values
Return the difference as the minimum number of operations needed
Given an array of obstacles' coordinates, determine the minimal jump length to reach beyond all obstacles starting from coordinate 0 while avoiding landing on any obstacle...
Find the minimal jump length to bypass all obstacles while avoiding landing on any obstacle.
Iterate through the obstacle coordinates to find the maximum coordinate.
Calculate the minimum jump length needed to bypass all obstacles.
Ensure the jump length consistently avoids all obstacle points.
The final jump can overshoot the line's end point.
You are given an unsorted array/list ‘ARR’ of ‘N’ integers. Your task is to return the length of the longest consecutive sequence.
The consecutive sequence ...
Find the length of the longest consecutive sequence in an unsorted array of integers.
Sort the array to make it easier to identify consecutive sequences.
Use a set to store unique elements and check for consecutive numbers.
Track the length of consecutive sequences and update the maximum length found.
Handle duplicates by counting only one occurrence in the consecutive sequence.
Round duration - 45 minutes
Round difficulty - Easy
Timing: 10:15 - 11:00 am.
The interview was online from home.
Round duration - 45 minutes
Round difficulty - Medium
Timing: 2:15 - 3:00 PM
The interview was online from home.
There were a few audio cuts in the video call but we were able to manage regardless.
Given a string STR
containing characters from [a-z], [A-Z], [0-9], and special characters, determine the reverse of the string.
The input starts with a single i...
Reverse a given string containing characters from [a-z], [A-Z], [0-9], and special characters.
Iterate through the characters of the string in reverse order and append them to a new string.
Use built-in functions like reverse() or StringBuilder in languages like Python or Java for efficient reversal.
Handle special characters and numbers along with alphabets while reversing the string.
Ensure to print each reversed string
Tip 1 : For OOPS, DS and programming, I recommend Codezen, Leetcode, InterviewBit and GeeksforGeeks.
Tip 2 : For OS, DBMS and Computer Network, I recommend GateSmasher, Knowledge Gate and TutorialsPoint.
Tip 3 : For SQL, I recommend W3Schools and GeeksforGeeks.
Tip 4 : Always maintain your cool during Interviews, and answer the questions calmly. If you get stuck in a problem, do not hesitate to ask for hints.
Tip 1: Mention only those projects and internships in your resume that you are comfortable with, that is, you can explain to the interviewee.
Tip 2: Mention only those skills/programming languages in your resume that you are comfortable with, that is, you have proper knowledge of as the interviewee can ask questions from those languages specifically.
Tip 3: Keep your data in your resume honest and accurate.
I applied via Campus Placement
ATM transaction involves multiple background processes including authentication, authorization, and communication with bank servers.
Customer inserts card and enters PIN
ATM authenticates the card and PIN
ATM requests authorization from bank server
Bank server verifies account balance and approves or denies transaction
ATM dispenses cash or completes other requested transaction
ATM updates account balance and sends transacti
Cut cake into 8 pieces using knife 3 times only.
First, cut the cake horizontally into two equal halves.
Then, cut the cake vertically into four equal pieces.
Finally, cut the cake horizontally again into eight equal pieces.
Make sure to use the knife efficiently to minimize the number of cuts.
Practice visualization before making the cuts to avoid mistakes.
The one bird was already dead.
The bird was already dead before the shot was fired.
The bird was injured and unable to fly away with the rest of the birds.
The bird was a decoy bird used for hunting purposes.
The bird was a trained bird used for falconry.
Developed a web-based attendance management system and a mobile app for event management.
Created a database schema and implemented CRUD operations using PHP and MySQL.
Designed the user interface using HTML, CSS, and JavaScript.
Integrated Google Maps API for location tracking in the mobile app.
Implemented push notifications using Firebase Cloud Messaging.
Collaborated with a team of four to complete the projects within t
I applied via Campus Placement
Finding smallest of 4 numbers without using >.< and min function in Java.
Initialize a variable with the first number
Compare it with the remaining numbers using if-else statements
If a smaller number is found, update the variable
Repeat until all numbers are compared
The final value of the variable will be the smallest number
Code for palindrome checking
Convert the input to lowercase to ignore case sensitivity
Use two pointers, one at the start and one at the end of the string
Compare the characters at both pointers and move them towards each other
If all characters match, it's a palindrome
Javascript code to display 'Hello World!' on the webpage
Create a new HTML file
Add a script tag with 'type' attribute set to 'text/javascript'
Inside the script tag, use document.write() to display 'Hello World!'
Swap two numbers without using a temporary variable.
Use addition and subtraction to swap the values
Use XOR operator to swap the values
Use multiplication and division to swap the values
To add 2 tables, we need to use a join operation on a common column.
Identify the common column between the tables
Choose the appropriate join type (inner, outer, left, right)
Write the SQL query to join the tables
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
Union combines and removes duplicates, Union All combines all rows including duplicates.
Union is used to combine the result sets of two or more SELECT statements and remove duplicates.
Union All is used to combine the result sets of two or more SELECT statements and includes all rows, including duplicates.
Union is slower than Union All as it has to remove duplicates.
Union requires the same number of columns in all SELEC...
Being assigned a project with unrealistic deadlines and minimal guidance
Received a project with tight deadlines and unclear requirements
Struggled to meet the deadlines due to lack of guidance and support
Had to work long hours and weekends to try to complete the project
Learned the importance of clear communication and setting realistic expectations
posted on 4 Dec 2024
3 coding que easy,med and hard
I applied via Referral and was interviewed before Jan 2024. There were 2 interview rounds.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
Polymorphism allows for methods to be called on objects of different classes that share a common superclass.
It enables flexibility and extensibility in object-oriented programming.
Examples include method overriding in inheritance and interfaces in Java.
Sort an array that has been rotated at some pivot point.
Find the pivot point where the array is rotated.
Split the array into two subarrays based on the pivot point.
Sort each subarray individually.
Merge the sorted subarrays back together to get the final sorted array.
I address conflict in team by promoting open communication, active listening, and finding common ground.
Encourage open communication to address issues early on
Practice active listening to understand all perspectives
Find common ground and work towards a mutually beneficial solution
Led a team project to develop a new feature for our company's software platform
Initiated weekly team meetings to discuss progress and address any issues
Delegated tasks based on team members' strengths and availability
Provided guidance and support to team members throughout the project
Presented the final product to senior management and received positive feedback
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