Grofers interview experience Real time questions & tips from candidates to crack your interview
SDE - 2
Grofers
3 rounds | 5 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 1 month
Topics: Data structures, Threading and synchronisation, Kotlin vs Java, Activities lifecycle, Fragment lifecycle, Android services, Reduce APK size, Create analytics library
Tip 1 : Prepare easy/medium level data structures questions in leetcode. Solve atleast 50 questions of multiple types like strings, arrays, tree, linked list, graph
Tip 2 : Go through Android basic questions like lifecycle, live data, MVC/mvp/ mvvm pattern, retrofit, data binding
Tip 3 : Atleast solve 5 design questions like how to build Instagram, analytics library, crashlytics
Application process
Where: Linkedin
Eligibility: No
Tip 1 : be concise
Tip 2 : write only those keywords which you have in depth knowledge
Interview rounds
01
Round
Medium
Face to Face
Duration60 Minutes
Interview date2 Jan 2020
Coding problem1
Timing was around 11 am
Environment was great, it intrigued me to join Blinkit.
1. Pair Sum
Easy
15m average time
90% success
0/40
Asked in companies
You are given an integer array 'ARR' of size 'N' and an integer 'S'. Your task is to return the list of all pairs of elements such that each sum of elements of each pair equals 'S'.
Note:
Each pair should be sorted i.e the first value should be less than or equals to the second value.
Return the list of pairs sorted in non-decreasing order of their first value. In case if two pairs have the same first value, the pair with a smaller second value should come first.
Problem approach
First approach : Loop inside Loop to figure out the sum of two numbers are equal to a constant number. But the complexity is N2
Second approach : i used Map to store numbers. Before storing we just check rhta constant number - current number exist in map or not.
Second solution is approved
02
Round
Medium
Face to Face
Duration60 Minutes
Interview date9 May 2022
Coding problem3
Timing 11 am
Interviewer had good knowledge
1. Technical Question
Activity lifecycle
Problem approach
Tip 1 : Remember important methods and what is the used of every method
2. Technical Question
Fragment lifecycle
Problem approach
Tip 1 : Remember important methods and what is the used of every method
3. System Design Question
Explain MVVM pattern
Problem approach
Tip 1 : must have knowledge about MVC, mvp,mvi,mvvm patterns.
03
Round
Easy
Face to Face
Duration30 Minutes
Interview date11 May 2022
Coding problem1
This round is cultural fit round
1. Basic HR Questions
1. Why Blinkit?
2. Salary discussion
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you write a single-line comment in C++?
Choose another skill to practice
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