Mobikwik Interview Questions, Process, and Tips

Merge 2 unsorted array

Selenium automation framework
Redt assured automation framework

Q1. Tell me about your self
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Q2. Why you left your last organisation
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Q3. Hr describe the job opportunities
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Q1. About the current Job,Roll experience &CTC
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Q1. Profile related questions like reconciliation process and Excel
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Q1. Regarding. Last job status
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Round duration - 90 minutes
Round difficulty - Medium

Only Java allowed

Q1. 
Sort 0 and 1 Problem Statement
Given an integer array ARR of size N containing only integers 0 and 1, implement a function to sort this array. The solution should scan the array only once without using an...read more
Ans. 
Keep two index variables and traverse from the end.
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Round duration - 60 minutes
Round difficulty - Easy

Basic intro and coding questions

Q1. 
Valid Perfect Square Check
An integer N is provided, and the task is to determine if N is a perfect square. A perfect square refers to an integer which can be expressed as the square of another integer.
...read more
Ans. 
Two nested for loops and check if sum equal to given number
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Q2. 
Merge Sort Problem Statement
Given a sequence of numbers 'ARR', your task is to return a sorted sequence of 'ARR' in non-descending order using the Merge Sort algorithm.
Example:
Input:
ARR = [5, 3, 8,...read more
Ans. Recursion
The basic idea is that we divide the given ‘ARR’ into two-part call them ‘leftHalves’ and ‘rightHalves’ and call the same function again with both the parts. In the end, we will get sorted ‘leftHaves’ and sorted ‘righthalves’ which we merge both of them and return a merged sorted ‘ARR’.
We implement this approach with a divide and conquer strategy.
 
Here is the algorithm : 
 
1. Divide ‘ARR’ into two-p...read more
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Round duration - 60 minutes
Round difficulty - Medium

More difficult than the previous round

Q1. 
Bottom View of Binary Tree Problem Statement
Given a binary tree, the task is to print its bottom view from left to right. Assume the left and the right child nodes make a 45-degree angle with their paren...read more
Ans. 
Do a level order traversal and update a hashmap based on horizontal distances from the root.
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Round duration - 70 minutes
Round difficulty - Medium

There were no DSA questions. My interviews were based on android app development. The interviewer presented scenarios and asked how will you solve them. No particular correct answer was expected just the best approach as per me.

Q1. How would you implement multiple RecyclerViews on a magnified screen in an Android application?
Ans. 
Tip 1 : Have a basic understanding of recycler view
Tip 2 : Recycler with multiple view types
 
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Q2. How would you implement various activities related to cart functionality in an e-commerce application?
Ans. 
Tip 1 : Basic flow and lifecycle of activities and fragments.
Tip 2 : Knowledge about launch modes and view models.
 
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Round duration - 30 minutes
Round difficulty - Easy

HR asked questions about why Mobikwik, what's your goal, how are you a good fit, etc.

Round duration - 120 Minutes
Round difficulty - Medium

The first round was an assessment round comprised of MCQ questions of DSA, RDBMS, MySQL questions and 2 coding questions to be written in java only

Q1. 
Shortest Path in a Binary Matrix Problem Statement
Given a binary matrix of size N * M where each element is either 0 or 1, find the shortest path from a source cell to a destination cell, consisting only...read more
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Q2. 
Kth Smallest Element Problem Statement
You are provided with an array of integers ARR of size N and an integer K. Your task is to find and return the K-th smallest value present in the array. All elements...read more
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Round duration - 60 Minutes
Round difficulty - Medium

The basic data structure round duration 1 hour, in this Interviewer, was very friendly and asked some casual questions. After that, he asked me to code.

Q1. 
Maximum Subarray Sum Problem Statement
Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array.
Example:
Input:
array = [34, -50, 42, 14, -5, 86]
Out...read more
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Round duration - 60 Minutes
Round difficulty - Hard

Advance data structure round duration 1 hour, in this Interviewer asked some basic questions on oops, puzzles and asked me to code them later.

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...read more
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Q2. 
Trapping Rain Water
You are provided with an array ARR of integers representing an elevation map, where ARR[i] denotes the elevation of the ith bar. Determine the maximum amount of rainwater that can be t...read more
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Round duration - 30 Minutes
Round difficulty - Medium

Vice President interview round duration 30mins, in this round VP’s of different domains taking interview to the selected candidates.

Q1. 
Buy and Sell Stock Problem Statement
Imagine you are Harshad Mehta's friend, and you have been given the stock prices of a particular company for the next 'N' days. You can perform up to two buy-and-sell ...read more
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Round duration - 30 Minutes
Round difficulty - Easy

This round lasted for 30mins basic HR questions were asked