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Flipkart Sde1 Interview Questions and Answers
Flipkart Sde1 Interview Experiences
2 interviews found
Anonymous
I applied via Company Website and was interviewed in May 2024. There were 2 interview rounds.
3 DSA questions were there in the coding round
(2 Questions)
- Q1. DSA based question
- Q2. DSA question medium level
Selected
I applied via Referral and was interviewed before Jan 2024. There were 3 interview rounds.
1 HR of coding round, 2 problems asked. One on stack, one on DP.
Machine coding round where LLD implementation of a cab booking system was asked.
(2 Questions)
- Q1. Past projects were discussed at length
- Q2. Behavioural questions were asked
Interview questions from similar companies
I appeared for an interview in Aug 2017.
Interview Questionnaire
17 Questions
- Q1. -----/ But here the main thing is that handling of corner cases like when there are duplicate tickets and when there is no proper path possible with given tickets
- Q2. -----/
- Q3. N queen problem with problem statement and dry running of code with 4 queens and then writing the code
- Q4. Sub set problem(Check if there exists any sub array with given sum in the array ) . But the thing here is that we have to do it with space complexity of only O( 1 K ) . K is the sum given .
- Q5. What is NP hardness .
- Ans.
NP hardness refers to the difficulty of solving a problem in non-deterministic polynomial time.
NP-hard problems are some of the most difficult problems in computer science.
They cannot be solved in polynomial time by any known algorithm.
Examples include the traveling salesman problem and the knapsack problem.
- Q6. What is the difference between references and pointers
- Q7. What is difference between reference variable and actual reference
- Ans.
A reference variable is a variable that holds the memory address of an object, while an actual reference is the object itself.
A reference variable is declared with a specific type and can only refer to objects of that type.
An actual reference is the object itself, which can be accessed and manipulated using the reference variable.
Changing the value of a reference variable does not affect the original object, but changi...
- Q8. In this round he asked me about previous round questions and their time complexities also . and with every DS and Algo related questions they asked the time complexities
- Q9. Segmentation , virtual memory , paging
- Q10. 0-1 Knapsack problem
- Ans.
The 0-1 Knapsack problem involves maximizing value within a weight limit using items that can either be included or excluded.
Dynamic Programming approach is commonly used to solve this problem.
Each item has a weight and a value; you cannot take fractional items.
Example: If you have items with weights [1, 2, 3] and values [10, 15, 40], and a capacity of 6, the maximum value is 55.
The solution involves creating a table t...
- Q11. What happens when we type an URL
- Ans.
When we type an URL, the browser sends a request to the server hosting the website and retrieves the corresponding webpage.
The browser parses the URL to extract the protocol, domain, and path.
It resolves the domain name to an IP address using DNS.
The browser establishes a TCP connection with the server.
It sends an HTTP request to the server.
The server processes the request and sends back an HTTP response.
The browser re...
- Q12. Implementation of LRU (WIth Production level code)
- Ans.
Implementation of LRU cache using a doubly linked list and a hash map.
LRU (Least Recently Used) cache is a data structure that stores a fixed number of items and evicts the least recently used item when the cache is full.
To implement LRU cache, we can use a doubly linked list to maintain the order of items based on their usage frequency.
We can also use a hash map to store the key-value pairs for quick access and retrie...
- Q13. Given page access sequence and we have to tell final output using different page replacement algorithms like FIFO , LRU etc
- Ans.
Explaining page replacement algorithms like FIFO and LRU using a given page access sequence.
FIFO (First-In-First-Out): Replaces the oldest page in memory.
Example: Access sequence [1, 2, 3, 1, 2, 4] with 3 frames results in [1, 2, 4].
LRU (Least Recently Used): Replaces the page that hasn't been used for the longest time.
Example: Access sequence [1, 2, 3, 1, 2, 4] with 3 frames results in [2, 3, 4].
Optimal: Replaces the ...
- Q14. What is indexing in DBMS How do we maintain it
- Ans.
Indexing in DBMS is a technique to improve query performance by creating a data structure that allows faster data retrieval.
Indexing is used to speed up data retrieval operations in a database.
It involves creating a separate data structure that maps the values of a specific column to their corresponding records.
This data structure is called an index.
Indexes are typically created on columns that are frequently used in s...
- Q15. B trees , B+ trees with examples
- Q16. AVL trees with examples and their balancing
- Q17. Pid ={3,5,0,1} ppid ={5,4,2,2} process id(pid) ppid=parent process id let us say the process that we killed is 2 now we have to print 2,0,1 as 0,1 are child of 2 and suppose that if we have children f...
- Ans.
Given a list of process IDs and their corresponding parent process IDs, print the IDs of all processes that are children of a specific process ID, and recursively kill all their children.
Iterate through the list of process IDs and parent process IDs
Check if the current process ID is the one to be killed
If yes, recursively find and print all its children
If a child has further children, recursively kill them as well
Interview Preparation Tips
Experience: It is a written round .
We are given with 2 coding questions of 10 marks each .There is no negative marking for coding questions
1)Given a string you have to partition the string in such a manner that each part of the partitioned string is a palindrome in itself and you have to count the number of such partition
For eg: given string NITIN
N ITI N
N I T I N
NITIN
So output will be 3.
2)You are given with a large paragraph and N words.
You have to find a min length subparagraph of the paragraph which contain all those N words in any order. Here length of a paragraph is the count of words in the paragraph.
There are 20 MCQ's all are technical questions only majorly from DSA
Tips: Coding it comes from practice . And for aptitude be good at fundamentals like time complexities etc .
Round: Technical Interview
Experience: Some times luck in interview is also important .I was unable to solve the second question initially ,but later with the help of my interviewer I was able to solve it .
Tips: Even if you are not able to solve the question initially don't be panic it will definitely go well
Round: Technical Interview
Experience: There are so many other questions . But sorry to say that I don't remember all of them ,if I remember them at some other time I will again update it here .
This round interviewer was very nice person And he is very helpful in fact .
Tips: Have solid basics at all data structures and algorithms ,Operating Systems
Round: Technical Interview
Experience: This round is entirely about other CS subjects like OS , DBMS,Networking .
Here asked me do you know other CS subjects like compiler design etc .
But as I am from Electronics I told them that I don't know all those subjects
Tips: Be good at other Cs subjects also
Round: Technical Interview
Experience: I solved above question Using DFS .I constructed a Graph using given information . and I did DFS starting from Given process .In the graph I took each process as 1 Node and the corresponding parent child relationship between the process as edges .
Tips: They will give sufficient time for thinking of the solution . So don't worry immediately after seeing the question . First think well you will definitely get it
Skills: Algorithms And DataStructures, Algorithm Analysis, Operating Systems, Basic Knowledge Of DBMS, Networking Basics, Object Oriented Programming (OOP) Basics
College Name: MNIT
Skills evaluated in this interview
Selected
I applied via Company Website and was interviewed in May 2023. There were 3 interview rounds.
Very Easy questions just do it
(4 Questions)
- Q1. What is your introduction
- Q2. Why SDE 1 only not SDE 2
- Ans.
SDE 1 is an entry-level position where candidates gain foundational skills before advancing to SDE 2.
SDE 1 focuses on learning and building foundational skills in software development.
SDE 2 requires more experience and expertise in software development.
Advancing from SDE 1 to SDE 2 is a common career progression in tech companies.
SDE 1 roles often involve working on smaller projects or components of larger projects.
SDE...
- Q3. If bully happens will you bully someone
- Ans.
No, I believe in standing up against bullying and supporting those who are being bullied.
I do not support bullying in any form and believe in treating others with respect and kindness.
I would try to intervene and help the person being bullied, either by talking to the bully or seeking help from a teacher or supervisor.
I believe in creating a positive and inclusive environment where everyone feels safe and respected.
- Q4. If taken leave can you work 7 days a week
Interview Preparation Tips
What people are saying about Flipkart
I applied via Company Website and was interviewed before Nov 2021. There were 3 interview rounds.
General Leet Code Question and it was easy
General coding question which was from difficult
Interview Preparation Tips
- leetcode
- Python
Good to know system designs and more.
Rhea Mehta
I applied via Campus Placement and was interviewed in Jul 2022. There was 1 interview round.
(1 Question)
- Q1. You are given a family tree, and a node, you have to print all the nodes on the same level as it.
- Ans.
Given a node in a family tree, print all nodes on the same level.
Traverse the tree level by level using BFS
Keep track of the level of each node while traversing
Print all nodes with the same level as the given node
Example: If the given node is 'John', print all his siblings and cousins
Interview Preparation Tips
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in Jul 2022. There were 2 interview rounds.
(1 Question)
- Q1. Linux Networking Programming
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Aug 2021. There were 2 interview rounds.
2 coding questions were asked, 1 invloves sorting and manipulation and the other one was trees question.
(3 Questions)
- Q1. 1 trees question and 1 priority queue question
- Q2. Connect n ropes with minimum cost(priority queue question)
- Ans.
Connect n ropes with minimum cost using priority queue
Create a priority queue and insert all the ropes into it
Pop the two smallest ropes from the queue and connect them
Insert the new rope into the queue and repeat until only one rope remains
The cost of connecting two ropes is the sum of their lengths
Time complexity: O(nlogn)
Example: Ropes of lengths 4, 3, 2, and 6 can be connected with a cost of 29
- Q3. Find the height of the tree when the leaf nodes are connected with each other
- Ans.
The height of the tree can be found by counting the number of edges from the root to the farthest leaf node.
Count the number of edges from the root to the farthest leaf node
This will give the height of the tree
Example: If the farthest leaf node is 4 edges away from the root, the height of the tree is 4
Interview Preparation Tips
- Data Structures
- OOPS
Skills evaluated in this interview
Selected
I applied via LinkedIn and was interviewed in Jun 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Tell me about yourself
- Q2. Coding based questions
Interview Preparation Tips
Subhash Liler
I applied via Campus Placement and was interviewed in Oct 2022. There were 4 interview rounds.
Machine learning, SQL, data structure
Privious problem with logical understanding , always participate in discussion with valid and clear points.
(3 Questions)
- Q1. Explain one machine learning algorithm.
- Ans.
Random Forest is a machine learning algorithm that builds multiple decision trees and combines their outputs.
Random Forest is an ensemble learning method.
It builds multiple decision trees and combines their outputs to make a final prediction.
It is used for both classification and regression tasks.
It is less prone to overfitting compared to a single decision tree.
It can handle missing values and outliers.
Example: predic...
- Q2. Algorithm for string attachment
- Ans.
String attachment algorithm joins two strings together.
Create a new string variable to hold the result
Loop through the first string and add each character to the new string
Loop through the second string and add each character to the new string
Return the new string
- Q3. You strength and weakness
Interview Preparation Tips
- Machine Learning
- Data Structures
Skills evaluated in this interview
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