CoreCentric Engineering Solutions Product Engineer Interview Questions and Answers

Round duration - 180 minutes
Round difficulty - Easy

It was an mcq + coding round. There were aptitude and ouput based question in mcq. And coding questions were easy

Q1. 
Find the Duplicate Number Problem Statement
Given an integer array 'ARR' of size 'N' containing numbers from 0 to (N - 2). Each number appears at least once, and there is one number that appears twice. Yo...read more
Ans. 
Find the duplicate number in an array of integers from 0 to (N-2).
• Iterate through the array and keep track of the frequency of each number using a hashmap.

• Return the number with a frequency greater than 1 as the duplicate number.

• Time complexity can be optimized to O(N) using Floyd's Tortoise and Hare algorithm.
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Q2. 
Reverse String Operations Problem Statement
You are provided with a string S and an array of integers A of size M. Your task is to perform M operations on the string as specified by the indices in array A...read more
Ans. 
Given a string and an array of indices, reverse substrings based on the indices to obtain the final string.
• Iterate through the array of indices and reverse the substrings accordingly

• Ensure the range specified by each index is non-empty

• Return the final string after all operations are completed
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Round duration - 60 Minutes
Round difficulty - Easy

It was technical + hr round. there were 2 people as interviewer. They stated from intro and asked some basic puzzles and hr questions. After that they asked about my projects, technologies and some ds algo and dbms questions.

Q1. Questions on Salesforce Basics. One can learn all great features in Salesforce.com but we must know the basic admin functionalities and features in Saleforce.
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Q1. The questions will be on your career, Resume. They will look for story telling skills, can you be a team player and individual player, etc. Can be technical as well.
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Aptitude test was easy. Preparation was good for about a month.

Direct interview was average.

GD was easy round and topic is also easy one.

Q1. HR round was average and salary discussion was there in this round.
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Q1. What is polymorphism
Ans. 
Polymorphism is the ability of an object to take on many forms.
• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It is achieved through method overriding and method overloading.

• Examples include function overloading in C++ and Java's method overriding.

• Polymorphism helps in achieving loose coupling and flexibility in code design.
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Q2. What is object oriented programming
Ans. 
Object oriented programming is a programming paradigm that uses objects to represent and manipulate data.
• It focuses on encapsulation, inheritance, and polymorphism.

• Objects have attributes (data) and methods (functions).

• Examples include Java, C++, and Python.

• It allows for modular and reusable code.

• It promotes code organization and maintenance.
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Q1. What is your strength
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Q2. Where do you see yourself in 5 years
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