Codezero2pi interview experience Real time questions & tips from candidates to crack your interview

SDE - 1

Codezero2pi
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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: 3 months
Topics: Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic Programming, DBMS
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 date2 Feb 2022
Coding problem2

1. K Largest Element

Moderate
10m average time
90% success
0/80
Asked in companies
Tata Consultancy Services (TCS)MathworksAmazon

You are given an unsorted array containing ‘N’ integers. You need to find ‘K’ largest elements from the given array. Also, you need to return the elements in non-decreasing order.

Try solving now

2. Multiply Strings

Moderate
35m average time
55% success
0/80
Asked in companies
SnapdealGoogleFacebook

You are given two big numbers ‘A’ and ‘B’ as strings. Your task is to find the product of both the numbers.

Note:

There are no leading zeros in both the strings, except the number 0 itself.
Do not use any built-in Big Integer Library.
For Example:
If, A = 123, and B = 456.
So the product of both numbers will be 56088.
Try solving now
02
Round
Medium
Face to Face
Duration60 minutes
Interview date7 Feb 2022
Coding problem2

1. Braille's Dilemma

Hard
24m average time
65% success
0/120
Asked in companies
FlipkartSprinklrCognizant

Abhishek, a blind man has N distinct binary strings all of the equal lengths. A binary string only contains '0's and '1's. The strings are numbered from 1 to N and all are distinct strings. Abhishek can only differentiate between these strings by touching them. In one touch Abhishek can identify one character at a position of any particular string from the set. Your task is to find the minimum number of touches Abhishek has to make so that he finds that all strings are different.

Try solving now

2. DBMS Question

What is a checkpoint in DBMS?
When does checkpoint occur in DBMS?
What are the unary operations in Relational Algebra?
Define a Relation Schema and a Relation.
What are the disadvantages of file processing systems?

03
Round
Easy
HR Round
Duration20 minutes
Interview date18 Feb 2022
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

What is the output of print(type("Python"))?

Choose another skill to practice
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