Signify Software Developer Interview Questions and Answers

Round duration - 90 Minutes
Round difficulty - Medium

It was in the morning at our institute. There were technical and aptitude problems.

Q1. 
Star Pattern Generation
Develop a function to print star patterns based on the given number of rows 'N'. Each row in the pattern should follow the format demonstrated in the example.
The picture illustra...read more
Ans. 
Function to print star patterns based on the given number of rows 'N'.
• Iterate through each row from 1 to N

• For each row, print spaces (N-row) followed by stars (2*row-1)

• Repeat until all rows are printed
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Round duration - 30 Minutes
Round difficulty - Medium

It was actually a Techno HR round. I was asked some technical questions about OS, OOPS, COMPUTER NETWORKING, WEB DEVELOPMENT. He went through my whole resume, asked about all the projects and past working experiences. The interviewer was really good, we talked about so many other topics, from Women empowerment to Water Crises. I felt really confident while speaking because he made me so comfortable.

Q1. 
Selection Sort Algorithm
Selection sort is a sorting technique that works by repeatedly finding the minimum element (considering ascending order) from the unsorted part and placing it at the beginning of ...read more
Ans. 
Selection Sort Algorithm sorts an array by repeatedly finding the minimum element and placing it at the beginning of the unsorted part.
• Iterate through the array to find the minimum element and swap it with the first unsorted element.

• Repeat this process for each element in the array until it is fully sorted.

• Time complexity of Selection Sort is O(n^2) making it inefficient for large arrays.
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Round duration - 24 hours
Round difficulty - Easy

It was a hackathon we were given a problem statement and we had to solve that within 2 days. There were team of 4 people.

Q1. You had to build a chatbot. Can you describe the design process and the key considerations you took into account?
Ans. 
The design process for building a chatbot involves defining user goals, choosing a platform, designing conversation flow, implementing natural language processing, and testing for accuracy.
• Define user goals and objectives for the chatbot

• Choose a platform or framework for building the chatbot (e.g. Dialogflow, Microsoft Bot Framework)

• Design the conversation flow and user interactions

• Implement natural language processing...read more
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Round duration - 15 minutes
Round difficulty - Easy

HR round

Round duration - 90 Minutes
Round difficulty - Medium

Q1. 
Colorful Knapsack Problem
You are given a set of 'N' stones, each with a specific weight and color. The goal is to fill a knapsack with exactly 'M' stones, choosing one stone of each color, so that the to...read more
Ans. 
The goal is to fill a knapsack with exactly 'M' stones, choosing one stone of each color, minimizing the unused capacity.
• Use dynamic programming to solve this problem efficiently.

• Create a 2D array to keep track of the minimum unused capacity for each color and weight combination.

• Iterate through the stones and colors to update the array with the minimum unused capacity.

• Return the minimum unused capacity from the array a...read more
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Round duration - 24 hours
Round difficulty - Medium

Round duration - 25 minutes
Round difficulty - Easy