Vir Softech Software Developer Interview Questions and Answers

Good questions for interview questions and

The interviewer asked me to introduce myself and explain my projects
Then he asked me to explain and design tables and how data is flowing into the tables in my project.
OOPS, properties and Interface.
Then he asks me to explain Restful APIs and tell me the difference between PUT

Basic aptitude and computer science(OS, programming) related questions.

Q1. String / Array Manipulations
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Q2. Searching / Sorting Algo
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Q3. What are the basics of web development?
Ans. 
Basics of web development include HTML, CSS, and JavaScript.
• HTML - used for creating the structure of a webpage

• CSS - used for styling the webpage and making it visually appealing

• JavaScript - used for adding interactivity and dynamic elements to the webpage
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Q1. What was the role in previous company and projects?
Ans. 
I was a Software Developer responsible for developing and maintaining web applications for a financial services company.
• Developed and maintained web applications using technologies such as Java, Spring, and Angular

• Collaborated with cross-functional teams to gather requirements and implement solutions

• Participated in code reviews and testing to ensure high quality deliverables

• Worked on projects to enhance user experience
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Q2. How would you describe your ability to work as a team player?
Ans. 
I excel as a team player, collaborating effectively with colleagues to achieve common goals.
• I actively listen to team members' ideas and provide constructive feedback.

• I am willing to take on different roles within the team to support project success.

• I communicate openly and transparently with team members to ensure everyone is on the same page.
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Round duration - 90 Minutes
Round difficulty - Medium

It was an online coding round. In this round, there are 2 problems, were given to me. 
They gave the test link through the mail and I have to open the test link till 12 PM.
The environment of Hackerrank was very friendly.
I am able to solve both of the problems.

Q1. 
Find Missing Number In String Problem Statement
You have a sequence of consecutive nonnegative integers. By appending all integers end-to-end, you formed a string S without any separators. During this pro...read more
Ans. 
Find the missing number in a string of consecutive nonnegative integers.
• Iterate through the string to find the missing number by checking the consecutive integers.

• Calculate the sum of the consecutive integers and compare it with the sum of the integers in the string to find the missing number.

• Handle cases where there are multiple missing numbers or the string is invalid by returning -1.

• Example: For input '1113', the mi...read more
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Q2. 
Maximum Size Rectangle Sub-matrix with All 1's Problem Statement
You are provided with an N * M sized binary matrix 'MAT' where 'N' denotes the number of rows and 'M' denotes the number of columns. Your t...read more
Ans. 
Find the maximum area of a submatrix with all 1's in a binary matrix.
• Iterate over each cell in the matrix and calculate the maximum area of submatrix with all 1's ending at that cell.

• Use dynamic programming to keep track of the maximum area seen so far.

• The maximum area of a submatrix ending at cell (i, j) is determined by the minimum of the areas ending at (i-1, j), (i, j-1), and (i-1, j-1) cells.

• Return the maximum are
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Round duration - 60 minutes
Round difficulty - Medium

The timing of this round is 10:30 AM to 11:30 AM.
First, the interviewer asked me to introduce myself and the interviewer was very friendly.