Samsung R&D Institute interview experience Real time questions & tips from candidates to crack your interview
SDE - Intern
Samsung R&D Institute
2 rounds | 4 Coding
problems
Selected Interview preparation journey
Journey
Transitioning from an electronics background to a tech career was a journey fueled by curiosity and dedication. My solid GPA reflected a strong foundation in problem-solving and analytical thinking. Embracing self-learning, I delved into computer science fundamentals and coding through online courses. Coding platforms became my go-to for honing problem-solving skills, while hands-on projects and internships provided practical experience. Networking and mentorship played pivotal roles in guiding me. With relentless preparation and a passion for technology, I successfully cracked the job interview, proving that one can bridge diverse fields and achieve their career aspirations with determination.
Application story
Samsung visited our campus. Fascinated by their innovative projects, I was determined to apply. Despite my electronics background, I had built a solid foundation in computer science fundamentals and honed my coding skills through various platforms. With a strong GPA and hands-on projects under my belt, I seized the opportunity. Rigorous preparation and leveraging my problem-solving skills paid off. The campus visit was the catalyst, and my dedication ensured I successfully cracked the interview, securing a tech internship at Samsung. The entire process was smooth and well-planned.
Why selected/rejected for the role?
I was selected for this role due to my strong grasp of Data Structures and Algorithms, along with an in-depth understanding of computer science fundamentals.
Preparation
Duration: 6 months
Topics: Data structures and Algorithm, OOPS, Computer networking, Operating system, MERN Stack
Tip 1: Focus on understanding the basics of any topic before jumping to the advanced level.
Tip 2: Spend more time thinking about the approach to a problem before jumping to the solution.
Tip 3: Consistency is key.
Application process
Where: Campus
Eligibility: None
Tip 1: Make sure it's a one-pager with all the important points highlighted.
Tip 2: You should have in-depth knowledge of all the projects you mention in your resume.
Interview rounds
01
Round
Easy
Online Coding Test
Duration90 minutes
Interview date3 Jan 2022
Coding problem2
It was an Online Assessment wherein 3 DSA questions were to be solved within 90 minutes.
1. Rotting Oranges
Moderate
20m average time
78% success
0/80
Asked in companies
You are given an m x n grid where each cell can have one of three values:
0 representing an empty cell,
1 representing a fresh orange, or
2 representing a rotten orange.
Every minute, any fresh orange that is 4-directionally adjacent to a rotten orange becomes rotten.
Return the minimum number of minutes that must elapse until no cell has a fresh orange. If this is impossible, return -1.
Problem approach
- The problem revolved around the concept of BFS i.e. Breadth First Search.
- We need to process each rotten orange individually, one at a time.
- We use Breadth-First Search (BFS) to traverse all the rotten oranges level by level, ensuring we correctly increment the time step by step.
2. Check Whether Binary tree Is Complete
Moderate
25m average time
70% success
0/80
Asked in companies
Given the root of a binary tree, determine if it is a complete binary tree.
In a complete binary tree, every level, except possibly the last, is filled, and all nodes in the last level are as far left as possible. It can have between 1 and 2h nodes inclusive at the last level h.
Problem approach
- This problem revolved around the concept of BFS.
- We will do BFS traversal since by this we can check all levels one by one.
- During each iteration, we check for the presence of child nodes. If a child node is missing, it indicates that no subsequent nodes should exist in the tree. We then set a flag to 1. If we encounter any nodes after this point, we return false. If no further nodes are found, we continue iterating and return true at the end.
02
Round
Easy
Video Call
Duration50 minutes
Interview date10 Jan 2022
Coding problem2
It was a problem-solving round consisting of questions about DSA, OOPS and my resume.
1. Two Sum
Easy
10m average time
90% success
0/40
Asked in companies
Given an array of integer nums and an integer target, return indices of the two numbers such that they add up to the target.
You may assume that each input would have exactly one solution, and you may not use the same element twice.
You can return the answer in any order.
Problem approach
- It was a simple problem solved using 2 pointer approach and sorting.
- Once the array is sorted the two pointers can be taken which mark the beginning and end of the array respectively.
- If the sum is greater than the sum of those two elements, shift the right pointer to decrease the value of the required sum and if the sum is lesser than the required value, shift the left pointer to increase the value of the required sum.
2. Project related questions
I was asked about projects in my resume, their implementation and design in depth. Along with that, I was also asked about OOPS in-depth, including concepts like polymorphism and inheritance etc.
Here's your problem of the day 
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Skill covered: Programming
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