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Apple Software Development Engineer Test Interview Questions and Answers
Apple Software Development Engineer Test Interview Experiences
2 interviews found
Arun Kumar
(8 Questions)
- Q1. 1. Optimised algorithm to find given number in 2D array
- Ans.
Optimised algorithm to find given number in 2D array
Use binary search for each row to find the number
Start from top-right or bottom-left corner for faster search
Divide and conquer approach can also be used
- Q2. 2. Write a code to return list of tuples where sum of tuple elements should be equal to given sum Ex: L = [1,2,3,4,5] S= 5 O/p [(2,3),(1,4)]
- Ans.
Code to return list of tuples with elements summing up to given sum
Iterate through the list and check for pairs of elements whose sum equals the given sum
Add the pairs to a list of tuples and return the list
Use a nested loop to compare each element with all other elements in the list
- Q3. 3.write a code for balancing paranthesis
- Ans.
Code to check if given string of parentheses is balanced or not.
Use a stack to keep track of opening parentheses
If a closing parenthesis is encountered, check if the top of stack is its corresponding opening parenthesis
If stack is empty or top of stack is not the corresponding opening parenthesis, return false
If all parentheses are balanced, return true
- Q4. 4. Testing tools related questions
- Q5. 5. Git related questions
- Q6. 6. Programming language (Python) related questions
- Q7. 7. Testing related questions
- Q8. 8. Situational based questions while working in Team
Interview Preparation Tips
Should familiar in problem solving and coding
Skills evaluated in this interview
Anonymous
(1 Question)
- Q1. Salary discussion and other informations
Interview Preparation Tips
Top trending discussions
Interview questions from similar companies
I appeared for an interview before Sep 2020.
(1 Question)
Round duration - 180 Minutes
Round difficulty - Medium
Round was held in the morning at 10 am.
- Q1.
M - Coloring Problem Statement
Given an undirected graph with 'N' nodes in the form of an adjacency matrix and an integer 'M', determine if it is possible to color the vertices of the graph using at most ...
- Ans.
The problem involves determining if a given graph can be colored with at most 'M' colors without adjacent vertices sharing the same color.
Create a function that takes the adjacency matrix, number of nodes 'N', and maximum number of colors 'M' as input.
Implement a graph coloring algorithm such as backtracking or greedy coloring to check if the graph can be colored with at most 'M' colors.
Check if adjacent vertices have ...
(1 Question)
Round duration - 40 Minutes
Round difficulty - Medium
The round was held in the evening
- Q1.
Trie Data Structure Implementation
Design and implement a Trie (prefix tree) to perform the following operations:
insert(word): Add a string "word" to the Trie.search(word): Verify if the string "w...
- Ans.
Implement a Trie data structure to insert, search, and check for prefixes in strings.
Create a TrieNode class with children and isEndOfWord attributes.
Implement insert, search, and startsWith methods in the Trie class.
Use a Trie to efficiently store and search for strings based on prefixes.
Example: insert 'apple', search 'apple' returns true, startsWith 'app' returns true, search 'app' returns false.
Round duration - 10 Minutes
Round difficulty - Easy
Was held in the morning around 9 am
Interview Preparation Tips
Tip 1 : Focus on graphs, most questions are from this topic
Tip 2 : Prepare well about the projects you mention in your resume
Tip 3 : Do not fill the resume with too many things. Keep it simple
Tip 1 : Have 2-3 projects on resume. But also be prepared to answer questions related to the projects.
Tip 2 : Do not mention too many things. Keep it short and simple
Skills evaluated in this interview
I appeared for an interview before Sep 2020.
Round duration - 60 minutes
Round difficulty - Easy
This was coding round and was conducted on Cocubes platform. It is not IDE but kind of white board coding platform. C/C++, Java and Python were only allowed languages.
Round duration - 30 minutes
Round difficulty - Easy
This was pen and paper round. Total 40 shortlisted candidates were grouped into 8 groups (each of 5). Each group was given a coding question which they have to solve on paper and explain it to the recruiter. 2 to 3 from each group were selected for the next round.
(1 Question)
Round duration - 60 minutes
Round difficulty - Easy
This was general face to face Data Structures and Algorithms based round.
- Q1. How do you perform a spiral order traversal of a binary tree? Please provide an explanation or code to print the binary tree in spiral order.
- Ans.
Spiral order traversal of a binary tree involves printing nodes level by level alternating between left to right and right to left.
Start by pushing the root node into a queue.
While the queue is not empty, pop a node, print its value, and push its children into the queue.
For each level, alternate between printing nodes from left to right and right to left.
Repeat until all nodes are printed in spiral order.
Round duration - 45 minutes
Round difficulty - Easy
It was the last round.
Interview Preparation Tips
Be real during the interview and don’t show off. Also, practice Data Structures and Algorithms based problems as only through practice you will be able to solve questions quickly during the interview. Also prepare for theory subjects like Object-Oriented Programming System, Database Management System, Computer networks, etc.
Application resume tips for other job seekersKeep your resume simple. Prefer LaTeX. Don't use colourful templates. They are too common and very unprofessional. Keep it black and white and keep your content richer. Keep it of 1 page and 2 pages only if you have achieved a lot. Don’t use fillers. Any unwanted information on the resume leaves a bad impact on the interviewer.
Final outcome of the interviewSelectedSkills evaluated in this interview
I appeared for an interview before Jan 2021.
(3 Questions)
Round duration - 120 Minutes
Round difficulty - Medium
This was an online coding round where we had 3 questions to solve under 120 minutes. The questions were of medium to hard difficulty level.
- Q1.
Minimum Time in Wormhole Network
Determine the minimum time required to travel from a starting point to a destination point in a two-dimensional coordinate system, considering both direct movement and the...
- Q2.
Substrings Differ by One Problem Statement
Ninja needs help in a battle against the string man. Given two strings, 'S' and 'T', the task is to find the number of substrings in 'S' that differ from some su...
- Ans.
The task is to find the number of substrings in 'S' that differ from some substrings of 'T' by exactly one character.
Iterate through all substrings of 'S' and 'T' and compare them character by character to find the ones that differ by exactly one character.
Use nested loops to generate all possible substrings of 'S' and 'T'.
Count the number of substrings that differ by exactly one character and return the total count.
- Q3.
Power of Two Problem Statement
Determine whether a given integer
Nis a power of two. Returntrueif it is, otherwise returnfalse.Explanation
An integer 'N' is considered a power of two if it can be e...
(4 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This round had 2 questions related to DSA where I was first expected to explain my approaches and then discuss the time and space complexities of my solution. After that , I was asked some core concepts related to OS.
- Q1.
Reverse Linked List Problem Statement
Given a singly linked list of integers, return the head of the reversed linked list.
Example:
Initial linked list: 1 -> 2 -> 3 -> 4 -> NULL
Reversed link... - Q2.
Cycle Detection in Undirected Graph Problem Statement
You are provided with an undirected graph containing 'N' vertices and 'M' edges. The vertices are numbered from 1 to 'N'. Your objective is to determi...
- Q3. What are the differences between a mutex and a semaphore?
- Ans.
Mutex is used for exclusive access to a resource by only one thread at a time, while semaphore can allow multiple threads to access a resource simultaneously.
Mutex is binary semaphore with ownership, used for mutual exclusion.
Mutex is typically used to protect critical sections of code.
Semaphore is a signaling mechanism, used for synchronization between multiple threads.
Semaphore can have a count greater than 1, allowi...
- Q4. What is meant by multitasking and multithreading in operating systems?
- Ans.
Multitasking refers to the ability of an operating system to run multiple tasks concurrently, while multithreading involves executing multiple threads within a single process.
Multitasking allows multiple processes to run simultaneously on a single processor, switching between them quickly to give the illusion of parallel execution.
Multithreading involves breaking a process into multiple threads that can be executed ind...
(4 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This round had 2 Algorithmic questions wherein I was supposed to code both the problems after discussing their
approaches and respective time and space complexities . After that , I was grilled on some OOPS concepts related to C++.
- Q1.
Trapping Rain Water Problem Statement
You are given a long type array/list
ARRof sizeN, representing an elevation map. The valueARR[i]denotes the elevation of theithbar. Your task is to determine th... - Q2.
Find The Repeating And Missing Number Problem Statement
You are provided with an array
numswhich contains the first N positive integers. In this array, one integer appears twice, and one integer is missi... - Q3. What is the Diamond Problem in C++ and how can it be resolved?
- Q4. What are friend functions in C++?
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
Interview Questionnaire
2 Questions
- Q1. Multiple
- Q2. Multiple.
Interview Preparation Tips
Experience: Graph problem.
First step was to formulate the question into graph problem.
Then solve using standard graph algo (Dijkstra, bellmen ford, e.tc).
Tips: Practice writing whole code without using standard library.
Duration: 3 hours
Total Questions: 1
Round: Technical Interview
Experience: Question related to dfs.
Asked about networking, OS and integers.
One puzzle.(available on geeksforgeeks)
Tips: Prepare for puzzle. Generally they go for standard puzzle.
Round: Technical Interview
Experience: It was mostly related to technical project and internship.
General discussion on machine learning.
Tips: Prepare for the projects mentioned on the resume
Round: HR Interview
Experience: He was testing me regarding how I will explain a technical project to a non-technical guy.. And also general HR questions like why u want to join Samsung and other similar questions.
Tips: Nothing new.
Skills: Basic programming stuff. , Algorithm, Graph Theory, Machine Learning, Problem Solving Skills
College Name: IIT Kharagpur
Apple HR Interview Questions
Software Developer Interview Questions & Answers
Samsung
Gaurav Srikant Mokhasi
posted on 3 Dec 2015
Interview Preparation Tips
Experience: Interns (both CS and IT) were selected in my third year. Pre-placement offers were rolled out to 16 of us which was roughly a conversion ratio of 1:3. A couple of ECE hires were added when SRI-B visited campus later.
General Tips: If you're in CS or IT, this is the only format your resume should be in: -----
Take your internship seriously. Have fun and all but also get your project done. It's not the end of the world if you don't get a PPO. Campus placements are tension-filled, no doubt, but a lot of people get equally good if not better jobs after missing out on PPOs.
Make sure you talk to your manager about the PPO process. She will be the one giving you your final review. So ensure that she knows you want the job. Prepare a fancy presentation for the HR. By fancy, I mean slick and professional. Think Apple, not flashy Microsofty graphics and stupid word art.
Skill Tips: Google GSAT (Global Samsung Aptitude Test) a week before the test and make sure you practice some similar CAT type questions. Questions are of medium difficulty and time management is a real issue (most of us were unable to finish properly). - I didn't have to use these but I've heard good things about codechef/topCoder and books such as Cracking the Coding Interview by Gayle Laakmann McDowell.
Skills:
College Name: NIT Surathkal
Interview Preparation Tips
Experience: The first consisted of an online test which had an aptitude section which was pretty simply and then a programming section consisting of three different programs. The programs were logical required basic knowledge of array, sorting and a little bit of data structures.
Round: Technical Interview
Experience: Around 13 of us were shortlisted for the interview round, B.Tech and M.Tech included. The interview round was mostly interactive, where we had to mention about the various interns that we went through. A few programming questions were asked based on topics which we were comfortable with.
Tips: Just get used to coding, data structures and basic aptitude. GRE preparation as such helped me.
Round: HR Interview
Experience: Finally there was a HR round in which I was asked as to why I would like to work in Samsung R&D and general things about interests and future plans. On the whole Samsung took 3 B.Tech students and 2 M.Tech students when they came for placements apart from PPOs.
General Tips: Personally I feel that one should apply in only those companies in which they are sure of having job satisfaction. So don't apply to companies which you are not interested in just for the sake of having a backup because once you are placed you do not have a second chance.
Do not get dejected if you do not get through in the first few tries. Keep your hopes up and be confident when ever you get to interview rounds. Try to be assertive when giving answers. It is some times exhausting to go through placements but the moment you get placed you will have the best feeling ever.
Skill Tips: Just chill and take the test. Once you clear the online test, irrespective of your pointer if you have a good profile you can convince the interviewers.
Skills:
College Name: NIT Surathkal
Shubham Srivastava
Interview Preparation Tips
Experience: Written round: One programming question of 3 hours duration.All test cases were to passed.
Duration: 3 hours minutes
Total Questions: 1
Round: Technical Interview
Experience:
There were two rounds : tech PI and HR round.
A.Tech. PI: Firstly,interviewer went through my whole resume.He started asking questions from project done during summer internship.Questions were:
1.What is he project about?
2.Difference between 3G and 4G.
3.What is the aim of this research internship?
4.How much was i able to complete in two months?(I told that i am continuing as major project,since in two months time i could not get desired result).
Then, he went onto programming language i was comfortable. I answered C.
1.sizeof("shubham")
strlen("shubham")
I was asked to write output.Output would be 8 and 7. He asked why. Basic concepts should be clear.
2.Storage Classes in C-asked me concept and gave some questions to write output.
3.Constant pointers and pointers to constant. Asked to write output of snippets he gave.
4.malloc,caloc,realloc,free-syntax
5.Questions on pointers.
Basic concepts of let us C were asked mostly,that book is enough . Also see, GEEKSFORGEEKS, C section.
Operating System: Mutex and Semaphore,critical Section, Scheduling algorithms, Producer-Consumer Problem.
(Data Structures was not asked to me but others.)
Puzzles:
1. Maximum run a batsman can make in 50 overs.
2.There are 10 coins. 5 face head side and 5 as tail. You are blind folded.Make two piles of equal number of coins such that number of head in equal in both the piles.
Assumption:You can flip coin any number of times.
Question: Why do you want to join Samsung ,though placed in other company?
Questions: Any plans of future studies. I answered 'NO' only job.
Last question: Any question I would like to ask them. I asked what work would be doing in R&D. He explained me a lot of things.
Tips: 1.Be thorough with your project(done during internship or training) . You should be able to answer almost all the questions.
2.Study operating system very well if you plan to sit in samsung R&D.
3.Data structures and any one programming language.
4.Prepare puzzles as it can be asked by anyone. See programmerinterview.com etc.
5.Refer samsung archives of GEEKSFORGEEKS . Interview questions were mostly covering those.
Round: HR Interview
Experience: 1.Introduce yourself.
2.How would your friends describe you?
3.Tell the recent experiences of which makes you initiative.(i told that i am initiative,then he asked that question. So be ready with the examples,when u say any of your qualities.)
4.What is your weakness?
5.Puzzles.He asked me to fill the numbers from 1 to 8 in these 8 boxes, one number exactly once, such that no two consecutive elements are
adjacent(diagonally, horizontally or vertically) to each other.
-----/
6.Which places in India have you been?
Skills: Solving Logic Puzzles, Basic C/C++, Data Structures, Operating Systems
College Name: NIT Raipur
Satyam Chaubey
I appeared for an interview in Aug 2016.
Interview Questionnaire
2 Questions
- Q1. Questions related to my project, questions on binary tree, questions from OS (like paging and scheduling). Interviewer also asked about competitive coding
- Q2. Formal questions regarding my background, family members etc
Interview Preparation Tips
Duration: 1 hour
Skills: General Coding And Problem Solving, Puzzle Solving Capability
College Name: NIT Jamshedpur
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