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Dunzo Software Developer Intern Interview Questions, Process, and Tips
Top Dunzo Software Developer Intern Interview Questions and Answers
- Q1. Asteroid Collision You are given an array/list “ASTEROIDS” representing asteroids in a row. For each element of the given array, its absolute value denotes the size of th ...read more
- Q2. Word Break II You are given a non-empty string S containing no spaces’ and a dictionary of non-empty strings (say the list of words). You are supposed to construct and re ...read more
- Q3. Convert binary tree to mirror tree Given a binary tree, convert this binary tree into its mirror tree. A binary tree is a tree in which each parent node has at most two c ...read more
3 Dunzo Software Developer Intern Interview Experiences
13 questions found
CodingNinjas
I was interviewed in Oct 2021.
2 Interview Rounds
Coding Test Round (2 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
This was a DS/Algo round.
Timing was 4:00pm-5:00pm IST.
The interviewer was very friendly.
He asked for my introduction.
- Q1. Asteroid Collision You are given an array/list “ASTEROIDS” representing asteroids in a row. For each element of the given array, its absolute value denotes the ...read more View Answers (2)
- Q2. Valid Parentheses You're given string ‘STR’ consisting solely of “{“, “}”, “(“, “)”, “[“ and “]” . Determine whether the parentheses are balanced. Input For...read more View Answers (1)
Coding Test Round (1 Question)
Round duration - 60 Minutes
Round difficulty - Medium
Timing was 3:00pm-4:00pm IST
Interviewer was friendly
He asked for my introduction. We dry run the code for the question.
- Q1. Word Break II You are given a non-empty string S containing no spaces’ and a dictionary of non-empty strings (say the list of words). You are supposed to constr...read more View Answers (4)
Interview Preparation Tips
Tip 1: Do not be nervous
Tip 2 : Ask questions from the interviewer if you are confused
Tip 1 : Mention your coding achievement in the resume
Tip 2 : You should have at least one good project on your resume.
Skills evaluated in this interview
I was interviewed before May 2021.
2 Interview Rounds
Video Call Round (2 Questions)
Round duration - 60 Minutes
Round difficulty - Easy
This round contained two coding questions. I was also asked some basic android development questions as I had mentioned a couple of projects around android.
- Q1. Convert binary tree to mirror tree Given a binary tree, convert this binary tree into its mirror tree. A binary tree is a tree in which each parent node has at ...read more View Answers (3)
- Q2. Technical Question
How would you implement undo and redo operations for ms word?
View Answers (1)
Video Call Round (2 Questions)
Round duration - 60 Minutes
Round difficulty - Medium
I was asked two coding questions, some questions around OOPs concepts and DBMS.
- Q1. Left View Of Binary Tree Given a binary tree. Print the Left View of the Tree. Example : If the input tree is as depicted in the picture: The Left View of the t...read more View Answers (3)
- Q2. Trie Implementation Implement a Trie Data Structure which supports the following two operations: Operation 1 - insert(word) - To insert a string WORD in the Tri...read more View Answers (2)
Interview Preparation Tips
Tip 1 : Focussing on DSA is essential for freshers, most of the companies' interview process will contain DSA questions.
Tip 2 : Stay stick to the basic concepts and don't feel overwhelmed by the advance concepts, most of the companies' will judge you on your foundation/basics.
Tip 1 : Resume should be one pager document which enables user to understand your background. Understand the difference between CV and resume.
Tip 2 : Be as honest as you can on your resume. However, writing that you are a beginner for this particular skill is fine.
Skills evaluated in this interview
Get interview-ready with top interview questions
I was interviewed before Nov 2020.
2 Interview Rounds
Coding Test Round (3 Questions)
Round duration - 90 Minutes
Round difficulty - Medium
1. 90 min , can do anytime between a designated 4 hr window
2. was on Hackerrank, and I was familiar with the platform
3. had 3 coding questions
- Q1. Bipartite Graph Given an undirected graph of ‘V’ vertices (labeled 0,1,..., V-1) and ‘E’ edges . Your task is to check whether the graph is bipartite or not. A ...read more View Answers (3)
- Q2. Longest Common Subsequence You have been given two Strings “STR1” and “STR2” of characters. Your task is to find the length of the longest common subsequence. A...read more View Answers (4)
- Q3. Build Min Heap You are given an array 'ARR' of integers having 'N' elements. Your task is to convert the input array into a min-Binary Heap. A m...read more View Answers (1)
Video Call Round (3 Questions)
Round duration - 60 minutes
Round difficulty - Hard
With manager
1. DS/algo
2. Networking
3, basic project stuff
4. Google meet
3. was in the afternoon
- Q1. Wildcard Pattern Matching Given a text and a wildcard pattern of size N and M respectively, implement a wildcard pattern matching algorithm that finds if the wi...read more View Answers (3)
- Q2. Left View Of Binary Tree Given a binary tree. Print the Left View of the Tree. Example : If the input tree is as depicted in the picture: The Left View of the t...read more View Answers (2)
- Q3. Networking Questions
- 3 way handshake
- Socket
- OOS -> thread / parallel executionAdd Answer
Interview Preparation Tips
Tip 1 : Interview Preparation is different from competitive coding. One has not to be a master, to ace faang interviews. CP is like solving puzzles.
Tip 2 : In interview be as descriptive as you can. Try to demonstrate the what you are thinking and the path you took to reach the solution ( whether or not it is correct )
Tip 3 : Try to improve your communication skills ( Trust me it matters a lot )
Tip 1 : Have a master resume and align it with the company requirements and position you are applying
Tip 2 : Include the projects that you actually worked on or have the knowledge about it
Skills evaluated in this interview
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Interview questions from similar companies
Anonymous
I applied via Campus Placement and was interviewed in Jan 2024.
4 Interview Rounds
Coding Test Round
Easy to medium level of leet code
Technical Round (1 Question)
- Q1. 1. Fibonacci series with recursion and without recursion
2. String Palindrome
3. Count all repeated numbers from the array View Answers (3)
Technical Round (1 Question)
- Q1. 1.Given an array(0-based indexing), you have to find the max sum of i*A[i] where A[i] is the element at index i in the array. The only operation allowed is to ...read more View Answers (1)
HR Round (1 Question)
- Q1. 1.Oops concepts
2.Oops code
2.About Java Spring
3. Array stack questions
4.Project discussion Add Answer
Interview Preparation Tips
Skills evaluated in this interview
Selected
I was interviewed before Aug 2023.
3 Interview Rounds
Coding Test Round
3 question of basic and 3 mcq
Coding Test Round
Strings,Sort 0 1 2,invert binary tree
One-on-one Round (2 Questions)
- Q1. Project Basics and Technical skills Add Answer
- Q2. Your Daily routine View Answers (1)
1 Interview Round
Technical Round (1 Question)
- Q1. It was based on dynamic programming Add Answer
Interview Preparation Tips
I applied via campus placement at Indian School of Mines (ISM), Dhanbad and was interviewed before Nov 2023.
2 Interview Rounds
Coding Test Round
2 questions on Hackerearth leetcode medium to hard level
Technical Round (1 Question)
- Q1. 2 Technical Interview
First round they asked 2 easy questions one of map and other of stack
second round they asked LRU Cache and Kadane's algorithm Add Answer
Interview Preparation Tips
I was interviewed in May 2021.
1 Interview Round
Coding Test Round (3 Questions)
Round duration - 90 Minutes
Round difficulty - Hard
Test Description/Instruction as Mentioned on the portal and mail :
1) The test will consist of 3 algorithmic problems.
2) The test time is 1.5 hours in which you will need to solve the 3 problems. The test link will be active from 10:00 AM onwards.
3) Please do not change the tabs since all the actions will be recorded and logged.
- Q1. Flood Fill Algorithm Ninja has found his new passion for photography. He has clicked some really good photos but in one of his images, he doesn’t like the color...read more View Answers (4)
- Q2. Kruskal’s Minimum Spanning Tree Algorithm You have been given a connected undirected weighted graph. Your task is to find the weight of the minimum spanning tre...read more View Answers (3)
- Q3. Merge Sort Given a sequence of numbers ‘ARR’. Your task is to return a sorted sequence of ‘ARR’ in non-descending order with help of the merge sort algorithm. E...read more View Answers (3)
Interview Preparation Tips
Tip 1 : Practice Atleast 300 Questions on leetcode (150 easy, 100 medium and 50 hard )
Tip 2 : Make atleast one big project which includes (DB, backend and frontend). Because in Hiring Manager round we have to discuss our resume for about 45mins to 1 Hr so having 1 or 2 big projects on the resume is always good to have otherwise HM will go towards core subjects Like OOP/OS/Networks which are often tricky.
Tip 3 : Think out of the box while solving a Question think of all the variants in which this questions can be asked. Let's take an example of simple question like two sum here we have to find a pair in an array whose sum is equal to given value. Now what if Interviewer asked to find three numbers instead of 2 or maybe find k numbers whose sum is equal to a given number. So it is always good to think out of the box and generalise the solution.
Tip 4 : Always try to solve each question in different ways. You should know both the bruteforce solution and the optimal one.
Tip 5 : When you solve a Question try to learn as much possible from a single Question for eg if you try to solve a Tree question then it is good to know both the iterative and recursive solution as sometimes Interviewer may introduce some constraints that due to huge test case recursive solution is not possible.
Tip 6 : 3-4 days before the interview start preparing using interviewbit as it contains all the important questions topic wise. I usually solve Interviewbit before the interview. No doubt Leetcode is good in terms of UI, Test cases and Easy to use but Interviewbit is more organised. I myself have done all the Interviewbit Questions multiple times.
Tip 1 : Try to add Experience at the top with detailed explanation of work done by you
Tip 2 : If No Experience: try to add more and more personal projects with the skills required in JD
Tip 3 : If No projects and Experience: Try to add Coding profiles, Achievements (Hackathons and Coding Competitions )
Skills evaluated in this interview
I was interviewed in Feb 2021.
2 Interview Rounds
Assignment Round (1 Question)
Round duration - 24 hours
Round difficulty - Medium
- Q1. Assignment There is an event and different types of prizes available at the event. How to send them to the end user or what will the required fields and links. ...read more View Answers (1)
Video Call Round (3 Questions)
Round duration - 120 Minutes
Round difficulty - Medium
It was a Data Structures and Algorithm Round and Discussion on My assignment round to check my Problem Solving Skills.
And the Interviewer was very friendly to me. I first introduced myself to the interviewer and what did I have done in past as a Software Engineer and Why I want to work in Grofers.
- Q1. Top View Of The Tree You are given a Binary Tree of integers. You are supposed to return the top view of the given binary tree. The Top view of the binary tree ...read more View Answers (3)
- Q2. Maximum Possible Time Given an array/list ‘ARR’ having 4 integer digits only. The task is to return the maximum 24 hour time that can be formed using the digits...read more View Answers (1)
- Q3. Technical Questions Then we have a small discussion on my projects and Past internship experience. He asks some questions related to my projects and what diffic...read more Add Answer
Interview Preparation Tips
Tip 1 : Practise Data Structures and Algorithms as much as you can on daily basis. Don't Fix numbers in your head, but practise as much as you can from all topics on daily basis.
Tip 2 : Give Programming Contests on a Daily basis. As it helps you to think of any particular problem in the fixed time frame.
Tip 3 : For Mastering DP, Learn From Aditya Verma Youtube Playlist and apply around 100 questions for solving any DP problem.
Tip 4 : Also Learn Computer Science theory subject once a week so that you will have a deep understanding of the particular subject since many interviews grind on CS theory subjects like OS, DBMS and Networks
Tip 5 : Make at least 2-3 Projects in any technology you like maybe Web Development or Android Development. It shows that you have some experience in Development and the company don't need to waste time on you for teaching frameworks.
Tip 6 : If you have time learn some System Design and learn how to design any system from end to end. Especially learn about designing a database of any application. In many interviews, the interviewer asks to design an application from end to end. So if you have some practice, then you can easily clear this type of rounds.
Tip 1 : Always attached your Project links in your resume. As it seems your project is genuine and you are confident in showing your projects
Tip 2 : Don't add unnecessary things in your resume which are not related to the job, like your 10th class winning tournament certificate or managing a college society. These things didn't create any impact on your profile and takes an unnecessary space in your resume.
Tip 3 : Always make a 1-page resume. If you are making more than 1 page then it means you have added a lot of unnecessary information which are not related to the job profile.
Tip 4 : Always show your Project and Past experience on top, just after your basic info and education. Since these are the things which should be on top to showcast the skills.
Skills evaluated in this interview
Selected
I applied via campus placement at Kalinga Institute of Industrial Technology, Khurda and was interviewed in Sep 2023.
1 Interview Round
Coding Test Round
3 Questions were asked out of which if you did 2 you were shortlisted for next round. Questions were mostly from topics like array, string and greedy
Interview Preparation Tips
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