Emiza Supply Chain Services Private Limited Software Engineer Interview Questions and Answers

Q1. Given a string, find the longest length palindromic substring in the given string.
Ans. 
Find the longest palindromic substring in a given string.
• Use dynamic programming to solve the problem efficiently.

• Start with the base cases of single characters and two characters.

• For longer substrings, check if the first and last characters match and if the substring between them is also a palindrome.

• Keep track of the longest palindrome seen so far.

• Time complexity: O(n^2), space complexity: O(n^2).
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Q1. Mention the most challenging technical problem you had to solve.
Ans. 
Developing a real-time data processing system for a high-traffic website.
• Designing a scalable architecture to handle the high volume of incoming data.

• Optimizing the data processing algorithms to minimize latency.

• Ensuring data consistency and accuracy in a distributed system.

• Implementing fault-tolerant mechanisms to handle system failures.

• Testing and debugging the system under various load conditions.
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Q2. Some minor low level entity design.
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They grasping our knowledge

Q1. They check how to grasp they ideas
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Q2. My details want to hire my skills
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Q1. DSA Questions - Easy to medium
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Round duration - 45 Minutes
Round difficulty - Medium

Q1. Design a class booking application for students.
Ans. 
A class booking application for students to schedule and manage their classes.
• Create a class booking system where students can view available classes, book classes, and manage their schedule.

• Include features like class search, class details, booking confirmation, and calendar view.

• Implement user authentication to ensure only registered students can book classes.

• Allow students to cancel or reschedule classes with proper...read more
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Round duration - 60 Minutes
Round difficulty - Medium

The interviewer understand the current problem statement I was working on. 
Asked the clarifying questions and alternative approaches to solve the same and their tradeoffs.
Also, asked about the technologies I was using in depth and reason for choosing the same.

Q1. 
Gas Tank Problem Statement
You have a car with a gas tank of infinite capacity. There are 'N' gas stations located along a circular route, numbered from 0 to N-1. You begin your journey with an empty tank...read more
Ans. 
Find the starting gas station index to complete a circular route with gas and cost arrays.
• Iterate through gas stations, keeping track of gas remaining after each station

• If gas remaining is negative, reset starting station to current station + 1

• If total gas remaining at the end is greater than or equal to total cost, return starting station index
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Round duration - 45 Minutes
Round difficulty - Medium

This round was their with the CTO and was mostly the culture fitment round.

Round duration - 30 Minutes
Round difficulty - Easy

This round was with the cofounder and was mostly culture fitment.