Prosys Infotech Senior Developer Interview Questions and Answers

Data structure and aptitude

10 mins given for prepare for the problem and after completing the problem (program ) they asked to explain and asked to upgrade the program by reduce time complexity

Q1. Topic given and want to explain
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Q2. Reverse string without buildin funtion and for loop
Ans. 
Reverse a string without using built-in functions or for loops
• Use recursion to reverse the string

• Pass the substring excluding the first character to the recursive function

• Base case: return the character itself if the length of the string is 1

• Concatenate the last character of the string with the result of the recursive call
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Q1. Introduce your self
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java and Python programming languages

• Skilled in web development technologies like HTML, CSS, and JavaScript

• Worked on projects involving database management with SQL
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Q2. Are you ok with agreement
Ans. 
Yes, I am okay with agreement.
• I am comfortable with signing agreements related to software development projects.

• I understand the importance of agreements in protecting both parties involved in a project.

• I am willing to review and negotiate agreements to ensure they are fair and reasonable.
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Divisibility, LCM, HCF.
Numbers, Decimals, Fractions, Powers.
Profit, Loss.
Simple interest and Compound interest.
Speed, Distance, Time.
Work and wages.
Trains, Boats, Streams-upstream/downstream, Circular track questions.
Cistern and pipes.

Coding interviews test candidates' technical knowledge, coding ability, problem solving skills, and creativity, typically on a whiteboard.

Choose a topic based on the assignment.
2 Conduct research.
3 Write a thesis statement

Q1. Promises in javascript
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.
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Create a movie app which fetches data from an API

Q1. General questions from Android development.
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Q2. DSA round + project discussion
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Q3. Stock span problem (leetcode)
Ans. 
Stock span problem is a financial problem where we have a series of n daily price quotes for a stock and we need to calculate the span of stock's price for all n days.
• Use a stack to keep track of the previous days' prices and their spans.

• For each day, pop the stack until a price greater than the current day's price is found, then calculate the span.

• Push the current day's price and span onto the stack.
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Q4. Search in a list of strings
Ans. 
Use a loop to search for a specific string in an array of strings.
• Iterate through each string in the array

• Use a conditional statement to check if the current string matches the search string

• Return the index of the matching string or -1 if not found
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Q1. Angle between needle of clock hour hand and minute hand at a particular time . they will definitely ask this question .
Ans. 
The angle between the hour hand and minute hand of a clock at a particular time.
• The angle between the hour hand and minute hand can be calculated using the formula: angle = 30 * (hour % 12) + 0.5 * minutes

• If the angle is greater than 180 degrees, subtract it from 360 to get the smaller angle

• For example, at 3:15, the hour hand is at 97.5 degrees and the minute hand is at 90 degrees, so the angle between them is 7.5 degr
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Q2. Asked everything from resume
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Q1. 1. what is react 2.create a tab strcture like when u click add css and open that tab
Ans. 
React is a JavaScript library for building user interfaces.
• React is a popular JavaScript library for building user interfaces.

• To create a tab structure in React, you can use components like Tabs and TabPanels.

• When a tab is clicked, you can use state to show or hide the content of that tab.
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