Napier Healthcare Solutions Senior Software Engineer Interview Questions and Answers

Round duration - 60 Minutes
Round difficulty - Medium

First there was a preplacement talk of company and interview process. Soon online test was conducted around 10 AM in consisting of MCQs, and coding question. Platform was smooth enough.

Q1. 
Find the Longest Palindromic Substring
Given a string ‘S’ composed of lowercase English letters, your task is to identify the longest palindromic substring within ‘S’.
If there are multiple longest palin...read more
Ans. 
Find the longest palindromic substring in a given string, returning the rightmost one if multiple substrings are of the same length.
• Iterate through each character in the string and expand around it to check for palindromes

• Keep track of the longest palindromic substring found so far

• Return the rightmost longest palindromic substring
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Round duration - 45 Minutes
Round difficulty - Medium

The day after online test is done , Technical round was conducted at 9AM . Interview went well without distractions though it was online.

Q1. 
Merge Sort Problem Statement
You are given a sequence of numbers, ARR. Your task is to return a sorted sequence of ARR in non-descending order using the Merge Sort algorithm.
Explanation:
The Merge Sort...read more
Ans. 
Implement Merge Sort algorithm to sort a sequence of numbers in non-descending order.
• Divide the input array into two halves recursively until each array has only one element.

• Merge the sorted halves to produce a completely sorted array.

• Time complexity of Merge Sort is O(n log n).

• Example: Input: [3, 1, 4, 1, 5], Output: [1, 1, 3, 4, 5]
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Q2. Given three tables and their attributes, how would you find the names of employees whose balance is less than 200?
Ans. 
Join tables on employee ID, filter by balance less than 200, select employee names.
• Join tables on employee ID attribute

• Filter rows where balance is less than 200

• Select employee names from the result
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Round duration - 45 Minutes
Round difficulty - Medium

Round duration - 35 Minutes
Round difficulty - Medium