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Zomato Software Developer Interview Questions, Process, and Tips
Top Zomato Software Developer Interview Questions and Answers
- Q1. Time to Burn Tree Problem You are given a binary tree consisting of 'N' unique nodes and a start node where the burning will commence. The task is to calculate the time ...read more
- Q2. 1. bitwise OR of the sum of all the subsequence of the array [Hard] 2. course schedule II (leetcode question)
- Q3. A hash function was written to convert a string into a hash. Write a un-hash function to revert it(from hash to string)?
Zomato Software Developer Interview Experiences
8 interviews found
Anonymous
(2 Questions)
- Q1. Given an array of n numbers , find the kth largest find the sum from a th largest to bth largest n can be huge
- Ans.
Find the sum of kth to bth largest numbers in a huge array efficiently.
Sort the array in descending order to easily find the kth and bth largest numbers.
Use a priority queue or min heap to efficiently find the kth and bth largest numbers without sorting the entire array.
Once you have the kth and bth largest numbers, iterate through the array and sum the numbers between them.
- Q2. Mostly elasticsearch related and company work related questions
Skills evaluated in this interview
I applied via campus placement at Indian Institute of Technology (IIT), Ropar and was interviewed in Oct 2024. There was 1 interview round.
1.5 hours Coding Round conducted on HackerRank.
I applied via Referral and was interviewed in Jul 2024. There were 2 interview rounds.
Genric aptitude questions also computer fundamentals like dbms
DP questions, tree questions r there
Interview Preparation Tips
What people are saying about Zomato
I applied via Referral and was interviewed before Nov 2021. There were 3 interview rounds.
Coding test was of 1:30 hour. Topic : Data structure and Algorithms, Platform : intervue.io
(5 Questions)
- Q1. 1. number of island (leetcode question [Medium]) 2. bitonic subsequence in an array (dp question)
- Q2. 1. bitwise OR of the sum of all the subsequence of the array [Hard] 2. course schedule II (leetcode question)
- Ans.
Two software development questions: bitwise OR of array subsequences and course schedule II.
Question 1 requires finding the bitwise OR of the sum of all subsequences of an array.
Question 2 is a LeetCode question about scheduling courses with prerequisites.
For question 1, we can use dynamic programming to find all subsequences and then calculate the bitwise OR.
For question 2, we can use a topological sort to determine t
- Q3. 1. oops, dbms, os questions 2. project discussions
- Q4. HR : normal hr question (see the interviewbit hr question sheet it will be really very helpfull)
- Q5. They have taken my last 10 min round just for clarifying the location preference and all.
Interview Preparation Tips
- Data Structures
- Operating Systems
- DBMS
- SQL
Do brush up on the cs fundamentals as they are very important in the 2nd and 3rd round of the interview.
Project which are written on the resume should not be copied as they grill on resume.
Skills evaluated in this interview
Zomato interview questions for designations
I was interviewed before Sep 2020.
(1 Question)
Round duration - 60 minutes
Round difficulty - Medium
Medium level competitive programming question. Interviewer looked for the approach and working code.
- Q1.
Time to Burn Tree Problem
You are given a binary tree consisting of 'N' unique nodes and a start node where the burning will commence. The task is to calculate the time in minutes required to completely b...
Round duration - 40 minutes
Round difficulty - Medium
Timing : Evening
Interviewer was frank. He checked for indepth knowledge of the subject.
Interview Preparation Tips
Tip 1 : Leave a subject to prepare, but never leave a topic.
Tip 2 : Must go through previous years questions / interview experiences.
Tip 3 : Atleast 4 projects in CV
Tip 1 : At least 4 projects (working)
Tip 2 : Never put false things on resume.
Skills evaluated in this interview
Get interview-ready with Top Zomato Interview Questions
I applied via campus placement at National Institute of Technology (NIT), Srinagar
Interview Preparation Tips
Experience: They selected 10 students from our college from CS and IT .They are looking for guys with extra projects done during college .App development will be a bonus ,contribution to open source and competitive programming will help for shortlisting.
Some of my friends had research papers published and they too got selected.
Round: Test
Experience: Have to write code snippet for 4 questions in 45 minutes
1.Difference between hour hand and minute hand
2.longest palindromic sub string.
3.Product Array puzzle
4.Some question related to matrix
Tips: All question were from geeksforgeeks
So practice it well ..u will make through it
Round: Test
Experience: Long Discussion on projects
They will scan each and every line of your Resume ,so dont write bullshits..
I wrote about interest in AI and got screwed..Discussion on college projects and final year project.
Then asked me to design a snake and ladder game OOPS concepts
Told me to find sum of all elements of sub matrix..(hint pre-processing the matrix)
Asked me about sessions and cookies
Gave a query to write on database indexing (dont remember exactly)
Asked me the code of the difference between hour hand and minute hand and extended it wid the second hand
Asked me as how to implement a dictionary
asked about TRIES ,CODE SNIPPET ON THE SHARED DOCS
One of my friend was asked to implement (set) of STL
Tips: The interviewer was cool guy..helped me a lot always made me comfortable.Interact with them as much as possible
Round: Test
Experience: Wid the CTO of the company .
Started wid the projects again .ACID properties,Database transactions,Concurrency Control
Optimization in database.
Then he asked me to code a function
Given a hash function applied on letters of English words ,un-hash it.Took me 45 minutes to reach the solution ,he helped me a lot.
Asked me to write the code for diameter of a binary tree
Asked me write the code for Boolean Matrix
One of my friend was asked to a question in which there was a bug in a m*n matrix and we have to find the bug(hint dfs or bfs)
Tips: keep calm ,,just keep talking ad he will help u a lot...
Round: HR
Experience: This was the toughest round for me...I had cleared all the rounds but they rejected me in the HR round ,,,dont know where I screwed..Learn every thing of Zomato..
They offered me an internship and thereafter they would look to give a PPO ...!!!lets see what happens
Skills: Coding Skills And Knowledge On Data Structures
Duration: 3
College Name: NIT Srinagar
Interview Questionnaire
9 Questions
- Q1. Write a regex for email validation?
- Ans.
Regex for email validation
Start with a string of characters followed by @ symbol
Followed by a string of characters and a period
End with a string of characters with a length of 2-6 characters
Allow for optional subdomains separated by periods
Disallow special characters except for . and _ in username
- Q2. Parse the XML? and store the output in JSON. Discussed different approaches?
- Q3. Print prime numbers in a given range and optimize the solution?
- Ans.
Print prime numbers in a given range and optimize the solution.
Use Sieve of Eratosthenes algorithm to generate prime numbers efficiently
Start with a boolean array of size n+1, mark all as true
Loop through the array and mark all multiples of each prime as false
Print all the indexes that are still marked as true
- Q4. Puzzle – 25 horses – 5 lanes, find fastest 3 horses?
- Q5. Web related questions on Sessions and cookies?
- Q6. A lot of discussion on my resume, experience etc
- Q7. Find angle between hour hand and minute hand in clock if time is given? Write a program or pseudo code?
- Ans.
Find angle between hour and minute hand in a clock given the time.
Calculate the angle made by the hour hand with respect to 12 o'clock position
Calculate the angle made by the minute hand with respect to 12 o'clock position
Find the difference between the two angles and take the absolute value
If the angle is greater than 180 degrees, subtract it from 360 degrees to get the smaller angle
- Q8. A hash function was written to convert a string into a hash. Write a un-hash function to revert it(from hash to string)?
- Ans.
To un-hash a string, use a reverse algorithm to convert the hash back to the original string.
Create a reverse algorithm that takes the hash as input and outputs the original string
Use the same logic as the hash function but in reverse order
If the hash function used a specific algorithm, use the inverse of that algorithm to un-hash the string
- Q9. He discussed about expectations and role. Asked me if I have any questions. He said to me “yaha aana hai to marwani padegi. tyar ho”? I smiled and asked what are the work timings? He said 9-9 and I was kin...
Interview Preparation Tips
Skills: Web development, JSON, Algorithm
College Name: na
Motivation: Overall process was not very tough. But they have start up culture. People work their for 11-12 hours a day. Sometimes on Saturday as well. So people who are geeks or have nothing in life to do except their job can go and join
Skills evaluated in this interview
Coding Blocks
Interview questions from similar companies
I applied via Referral and was interviewed in Apr 2024. There was 1 interview round.
Codesignal Round : Implementation based 4 questions. Solved 2.5
Selected
I applied via Recruitment Consulltant and was interviewed before Jan 2023. There were 2 interview rounds.
(1 Question)
- Q1. Asked to make a dynamic button component
(1 Question)
- Q1. Asked to make an API call using debouncing
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Zomato Software Developer Interview Process
based on 5 interviews
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