Schlumberger interview experience Real time questions & tips from candidates to crack your interview

SDE - 1

Schlumberger
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3 rounds | 5 Coding problems

Interview preparation journey

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Journey
I was unaware of this coding stuff till my school life. I got to know about the field of computer science in my class 11th. I found it intresting and decided that I will pursue my career in the field of computer science. I took admission in B.Tech CSE and learned the various concepts like DSA and all.
Application story
I got a message in my telegram group about the company visiting our campus for the hiring of SDE-1. As, I was in the fourth year, it was sure that I am going to apply for it. I started preparing accordingly and got selected at last.
Why selected/rejected for the role?
I think I was on point with my coding solutions to the questions asked in the interviews. I provided the optimal solutions and I was giving correct explanations to some theory questions asked.
Preparation
Duration: 4 months
Topics: Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic Programming
Tip
Tip

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: Campus
Eligibility: 7 CGPA
Resume Tip
Resume tip

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
Online Coding Test
Duration60 minutes
Interview date12 Sep 2021
Coding problem2

1. Find Duplicates in Array

Easy
15m average time
90% success
0/40
Asked in companies
InfosysAckoIBM

You are given an array/list 'ARR' consisting of N integers, which contains elements only in the range 0 to N - 1. Some of the elements may be repeated in 'ARR'. Your task is to find all such duplicate elements.

Note:
1. All the elements are in the range 0 to N - 1.
2. The elements may not be in sorted order.
3. You can return the duplicate elements in any order.
4. If there are no duplicates present then return an empty array.
Try solving now

2. Rotate Matrix

Moderate
15m average time
85% success
0/80
Asked in companies
AmazonSchlumbergerZoho Corporation

Given a 2-dimensional matrix of size ‘N’ x ‘M’, rotate the elements of the matrix clockwise.

For example: 
Input Matrix: [ [ 1, 2, 3 ] 
                [ 4, 5, 6 ] 
                [ 7, 8, 9 ] ]

Output Matrix: [ [ 4, 1, 2 ] 
                 [ 7, 5, 3 ] 
                 [ 8, 9, 6 ] ]

The output matrix is generated by rotating the elements of the input matrix in a clockwise direction. Note that every element is rotated only once. 
Note :
You do not need to print anything; it has already been taken care of. Also, update the given matrix in-place.
Try solving now
02
Round
Medium
Online Coding Test
Duration60 minutes
Interview date18 Sep 2021
Coding problem2

1. Single Element in a Sorted Array

Easy
15m average time
85% success
0/40
Asked in companies
ShareChatOlaLenskart

You are given a sorted array ‘arr’ of ‘n’ numbers such that every number occurred twice in the array except one, which appears only once.


Return the number that appears once.


Example:
Input: 'arr' = [1,1,2,2,4,5,5]

Output: 4 

Explanation: 
Number 4 only appears once the array.


Note :
Exactly one number in the array 'arr' appears once.


Try solving now

2. Left View Of Binary Tree

Moderate
30m average time
60% success
0/80
Asked in companies
MicrosoftSalesforceJP Morgan

You have been given a Binary Tree of 'n' nodes, where the nodes have integer values



Example :
If the input tree is as depicted in the picture: 

alt text

The Left View of the tree will be:  2 35 2 
Try solving now
03
Round
Easy
HR Round
Duration20 minutes
Interview date24 Sep 2021
Coding problem1

1. Basic HR Questions

Introduce yourself
Why do you want to join us?
What are your hobbies?
What do you think makes you a better choice than the other candidates?
What are your strengths and weaknesses?

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

Which SQL keyword removes duplicate records from a result set?

Choose another skill to practice
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