GR Consultants interview experience Real time questions & tips from candidates to crack your interview
Technical Associate
GR Consultants
2 rounds | 4 Coding
problems
Rejected
Interview preparation journey
Journey
I started updating my resume and profile on Naukri.com due to which the companies started to contact me for the required jobs. I had previously worked as a software engineer and had 1 year of experience.
Application story
I have applied through Naukri one day. Luckily my resume got shortlisted and was asked the HR to go through the all the rounds.
Why selected/rejected for the role?
Every thing was fine but in second round I was not able to give the proper explanation of operating system related question. It required some deep knowledge.
So always understand every concept in depth.
Preparation
Duration: 2 months
Topics: Data Structures, Algorithms, System Design, Aptitude, OOPS
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Application process
Where: Naukri
Eligibility: Above 7 CGPA
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Interview rounds
01
Round
Medium
Video Call
Duration50 minutes
Interview date12 Jul 2022
Coding problem2
Technical round with 2 DSA Questions.
1. Reverse Alternate Nodes
Moderate
36m average time
51% success
0/80
Asked in companies
You have been given a perfect binary tree of 'N' nodes. Your task is to reverse alternate levels of the given binary tree. That is reverse level 2, level 4, level 6, and so on. The root is at level 1.
A perfect binary tree is a binary tree in which all the interior nodes have two children, and all leaves have the same depth or same level.
Example :
Given binary tree :
After the reversal of alternate nodes, the tree will be :
Problem approach
The idea is to segregate the nodes which we need to reverse.
We need to take care of the edge cases i.e it has less than three nodes in which we do not need to do anything and we can simply return the head.
2. Trapping Rain Water
Moderate
15m average time
80% success
0/80
Asked in companies
You have been given a long type array/list 'arr’ of size 'n’.
It represents an elevation map wherein 'arr[i]’ denotes the elevation of the 'ith' bar.
Print the total amount of rainwater that can be trapped in these elevations.
Note :
The width of each bar is the same and is equal to 1.
Example:
Input: ‘n’ = 6, ‘arr’ = [3, 0, 0, 2, 0, 4].
Output: 10
Explanation: Refer to the image for better comprehension:
Note :
You don't need to print anything. It has already been taken care of. Just implement the given function.
Problem approach
Iterate over every elevation or element and find the maximum elevation on to the left and right of it. Say, the maximum elevation on to the left of the current elevation or element that we are looking at is ‘maxLeftHeight’ and the maximum elevation on to the right of it is ‘maxRightHeight’.
Take the minimum of ‘maxLeftHeight’ and ‘maxRightHeight’ and subtract it from the current elevation or element. This will be the units of water that can be stored at this elevation.
Compute units of water that every elevation can store and sum them up to return the total units of water that can be stored.
02
Round
Medium
Video Call
Duration40 minutes
Interview date19 Jul 2022
Coding problem2
Technical round with questions on OS/DBMS.
1. OS Questions
Explain demand paging?
What is virtual memory?
2. DBMS Questions
What is meant by ACID properties in DBMS?
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
What is recursion?
Choose another skill to practice
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