IDeaS Revenue Solutions Software Developer Intern Interview Questions and Answers

Round duration - One hour aptitude,1.5 hour coding
Round difficulty - Medium

First round was of aptitude that was easy and second round was of coding which had medium level questions.

Q1. 
Prime Numbers Identification
Given a positive integer N, your task is to identify all prime numbers less than or equal to N.
Explanation:
A prime number is a natural number greater than 1 that has no po...read more
Ans. 
Identify all prime numbers less than or equal to a given positive integer N.
• Iterate from 2 to N and check if each number is prime

• Use the Sieve of Eratosthenes algorithm for efficient prime number identification

• Optimize by only checking up to the square root of N for divisors
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Round duration - 20 minutes
Round difficulty - Medium

First I was asked about my projects and then 2 questions on array were given.

Q1. 
Count Pairs with Given Sum
Given an integer array/list arr and an integer 'Sum', determine the total number of unique pairs in the array whose elements sum up to the given 'Sum'.
Input:
The first line c...read more
Ans. 
Count the total number of unique pairs in an array whose elements sum up to a given value.
• Use a hashmap to store the frequency of each element in the array.

• Iterate through the array and for each element, check if (Sum - current element) exists in the hashmap.

• Increment the count of pairs if the complement exists in the hashmap.

• Divide the count by 2 to avoid counting duplicates (arr[i], arr[j]) and (arr[j], arr[i]) separ...read more
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Round duration - 180 minutes
Round difficulty - Medium

Q1. 
LRU Cache Task Description
Design and implement a data structure for a Least Recently Used (LRU) cache to support two operations:
1. get(key) - Returns the value for the given key if it exists in the cac...read more
Ans. 
Design and implement a Least Recently Used (LRU) cache data structure supporting get and put operations with specified constraints.
• Implement a data structure for LRU cache with get and put operations

• Maintain a capacity limit and remove least recently used item when exceeding capacity

• Handle get operation by returning value for given key or -1 if key does not exist

• Handle put operation by inserting or updating key-value p...read more
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Round duration - 30 minutes
Round difficulty - Hard

Round duration - 15-20 minutes
Round difficulty - Easy

Q1. Can you tell me about yourself and describe some condition-based questions you were asked?
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Round duration - 90 minutes
Round difficulty - Easy

First Round-It was 90 minutes round and basically contains aptitude question which you need to solve quickly.

Q1. MCQs
Normal aptitude and English and reasoning questions.
Ans. 
The question involves multiple choice questions on aptitude, English, and reasoning.
• Practice solving different types of aptitude questions like numerical reasoning, logical reasoning, and data interpretation.

• Improve your English skills by reading books, newspapers, and practicing grammar exercises.

• Enhance your reasoning abilities by solving puzzles, brain teasers, and logical reasoning problems.
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Round duration - 40 minutes
Round difficulty - Easy

My interview started and the interviewer asked me to introduce myself. Also he asked me some questions related to my hobbies like the last movie I saw in theatre (these questions are asked to make you comfortable and familiarise you with the interview) .

After this he asked me about my projects.
In which technology did I work. What is my project all about , what are its features and how is it useful in the real world.

After this, since I made my project in native Android using Java he asked me some conceptual questions in Java.He asked me about Collection framework.
After this he asked me about OOPs.What is OOPs, then he asked me about polymorphism and told me to explain it.

Finally, he gave me a question and asked me to code it.
Q. Find the second largest element in the given array (don't use sorting ).
Eg. arr={6,7,8,9,0}
Then, output=8

Interview took around 35-40 min .
At last he asked me if I had any questions for him to which I replied in what technologies do I get to work on if I get selected.

Q1. 
Find the Second Largest Element
Given an array or list of integers 'ARR', identify the second largest element in 'ARR'.
If a second largest element does not exist, return -1.
Example:
Input:
ARR = [2,...read more
Ans. 
Find the second largest element in an array of integers.
• Iterate through the array to find the largest and second largest elements.

• Handle cases where all elements are identical.

• Return -1 if second largest element does not exist.
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Round duration - 40 minutes
Round difficulty - Medium

Q1. 
Subarray Sums I Problem Statement
You are provided with an array of positive integers ARR that represents the strengths of different “jutsus” (ninja techniques). You are also given the strength of the ene...read more
Ans. 
Count the number of subarrays whose combined strength matches the given enemy strength.
• Iterate through the array and maintain a running sum to check for subarrays with sum equal to the enemy strength.

• Use a hashmap to store the running sum frequencies and increment the count of subarrays accordingly.

• Return the count of subarrays that sum up to the given enemy strength.
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Round duration - 15 minutes
Round difficulty - Easy

It was in the night around 7:00PM-7:15PM. Platform used for this round was skype. Interviewer was very friendly in nature. This round focusses more on your personality rather than knowledge.

Q1. 1.Self introduction 2.question about my department(ex ECE) 3.oops (polymorphism,inheritance,encapsulation) 4.programming C language because i preferred factorial of given number using recursion ...read more
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Q1. Just a formalities of checking address aadhar no mobile num thats all.
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Basic aptitude questions

Q1. Asking about resume and basic questions about my core, basic code questions.
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Q1. What was ur expected salary
Ans. 
I expect a salary that reflects my skills, the industry standard, and the value I can bring to the team.
• Research industry standards: For example, internships in my area typically range from $15 to $25 per hour.

• Consider my skills: If I have specific skills like proficiency in Python or Java, I might expect a higher rate.

• Value to the company: I believe my contributions can help improve project efficiency, which justifies...read more
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Q2. Tell the needed one
Ans. 
The needed one refers to identifying essential skills or qualities for a software developer intern role.
• Strong programming skills: Proficiency in languages like Python, Java, or JavaScript.

• Problem-solving ability: Ability to tackle coding challenges, e.g., solving algorithmic problems on platforms like LeetCode.

• Team collaboration: Experience working in teams, such as contributing to group projects in school or open-sou...read more
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