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

Application Engineer

Hexaview Tech
upvote
share-icon
5 rounds | 8 Coding problems

Interview preparation journey

expand-icon
Journey
I was not a bright student in my college life but I always worked harder as I wanted to get a recognized job. I had no such interests in my college life but I still did coding and Machine Learning.
Application story
I got to know about the openings and that the hiring drive of the company going to visit our college for hiring candidates as Application Engineers. I did great in the selection processes and got the offer letter.
Why selected/rejected for the role?
I think I had the appropriate skills and a good amount of knowledge to prove that I was the right man for the post. I also solved coding questions in the optimal manner.
Preparation
Duration: 1 Month
Topics: Data Structures, Pointers, OOPS, Algorithms, DBMS, Puzzles.
Tip
Tip

Tip 1 : Search Top Interview question of your topic on google and read thoroughly.
Tip 2 : Be prepared for general Questions also. For e.g., Tell me something about yourself, why do you want to join, about the company etc.
Tip 3 : Practice as many questions as you can as it will help you to build logic in short time.
Tip 4 : Do atleast 2 projects

Application process
Where: Campus
Eligibility: No criteria
Resume Tip
Resume tip

Tip 1 : Make short, up to the point things in your resume.
Tip 2 : Mention your projects, skills, and experiences in detail.

Interview rounds

01
Round
Medium
Video Call
Duration30 Minutes
Interview date9 Feb 2021
Coding problem2

First-round was the Coding round on Skype in the morning around 10 am.

We had to write programs on paper and share the photo personally on Skype with the Interviewer.

There were set including 2 questions.

We had the choice of writing the program in C,C++,Java,C# (Python was strictly Prohibited).
Time allotted for both programs- 40 minutes

We had to implement the given function only (it was mandatory) and had to write the complexity of the problem also.

We had to keep our Camera ON failing to which candidate could have face on-the-spot rejection.

1. Missing Number

Moderate
30m average time
70% success
0/80
Asked in companies
FacebookAppleAmazon

You are given an array/list ‘BINARYNUMS’ that consists of ‘N’ distinct strings which represent all integers from 0 to N in binary representation except one integer. This integer between 0 to ‘N’ whose binary representation is not present in list ‘BINARYNUMS’ is called ‘Missing Integer’.

Your task is to find the binary representation of that ‘Missing Integer’. You should return a string that represents this ‘Missing Integer’ in binary without leading zeros.

Note

1. There will be no leading zeros in any string in the list ‘BINARYNUMS’.

Example:

Consider N = 5 and the list ‘binaryNums’=  [“0”, “01”, “010”, “100”, “101”].  This list consists of the binary representation of numbers [0, 1, 2, 4, 5]. Clearly, the missing number is 3 and its binary representation will be “11”. So you should return string “11”.
Try solving now

2. Special Sum

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

You are given an array ‘ARR’ of length ‘N’. There are two operations, ‘FIRST_SUM’ and ‘LAST_SUM’ for every index ‘i’ (1 <= i <= N) in the array,

i) FIRST_SUM(i) calculates the sum of first i numbers.

ii) LAST_SUM(i) calculates the sum of last N-i+1 numbers.

Also for every ‘i’, SPECIAL_SUM(i) can be calculated as:

SPECIAL_SUM(i) = FIRST_SUM(i) + LAST_SUM(i)

Your task is to return the minimum SPECIAL_SUM for 0 <= i <= N - 1.

For example:

Given ‘N’ = 4 and ‘ARR’ = [1, 2, 3, 4].
Then the minimum special sum will be 5 for i = 0 (0-based indexing), which is (1 + 4) = 5.Sum of 1 integer from beginning and end.
For i = 1 it will be (1 + 2) + (3 + 4) = 10
For i = 2 it will be (1 + 2 + 3) + (2 + 3 + 4) = 15
For i = 3 it will be (1 + 2 + 3 + 4) + (1 + 2 + 3 + 4) = 20
All of which are greater than 5.  
Try solving now
02
Round
Medium
Video Call
Duration60 Minutes
Interview date9 Feb 2021
Coding problem2

Second round was the technical round which held after 4 hours of the coding round same day (at 2 pm). In my second round, Interviewer asked the questions from Data structures and algorithms, OOPS concepts, DBMS, one puzzle and one chess question (because in my introduction I said that I am a chess player)

1. Technical Questions

1. Which Data Structure is best, Linked List or Array, and why? (Learn)
2. Comparison of Time complexity of insertion, deletion, and searching in an array and linked list. (Learn)
3. SQL Query counts the total number of employees in a table. (Learn)
4. What is Normalization? Explain 1NF, 2NF, 3NF, and BCNF. (Learn)
5. Explain OOPS. Give real-life examples of Abstraction. (Learn)

2. Puzzle

Four people are trying to cross a sketchy rope bridge in the middle of the night. Only two can cross at a time. They only have one flashlight, and so one person must bring it back across the bridge to the starting side before anyone else can cross. One person takes 1 minute to cross, another takes 2 minutes to cross, another takes 5 minutes to cross, and the last person takes 10 minutes to cross. Hypothetically, if the 2-minute person and the 5-minute person crossed together, that would take a total of 5 minutes (but someone needs to bring the flashlight back, resulting in 7 minutes spent if the 2-minute person returns with the light). Everyone needs to get across in 17 minutes or less, otherwise they will be ripped apart and consumed by zombies.

03
Round
Hard
Video Call
Duration60 Minutes
Interview date9 Feb 2021
Coding problem1

The second round held same day after the first technical round. The second round was bit tough. He started asking some fundamentals questions from DS Algo, OOPs, DBMS, and other CS stuff and then he gradually increased the difficulty of the questions. At last, he asked me to write the code to print the pattern he gave, which I was able to do so he was impressed.

1. Number Pattern

Easy
0/40
Asked in companies
AccenturePayPalJosh Technology Group

Pattern for N = 4

The dots represent spaces.



Try solving now
04
Round
Hard
Video Call
Duration60 Minutes
Interview date9 Feb 2021
Coding problem2

The fourth and final technical round held the same day. He first asked me to send my resume to him through chat then he asked me questions related to my projects and skills. At last he gave me two coding problems and one riddle.

Moderate
25m average time
70% success
0/80
Asked in companies
InfosysDell TechnologiesCiti Bank

Ninja is given a pattern. Now he is asked to print the same pattern for any given ‘N’ number of rows.

Note:

There is only one space between the values of each column in a row.

For example, Pattern for ‘N’ = 5 will be.
1 2 3 4 5 
11 12 13 14 15 
21 22 23 24 25 
16 17 18 19 20 
6 7 8 9 10 
Try solving now

2. Spiral Matrix

Easy
0/40
Asked in companies
AdobeAccentureCisco

You are given a N x M matrix of integers, return the spiral path of the matrix

Example Of Spiral Path

Spiral Path

Try solving now
05
Round
Medium
HR Round
Duration60 Minutes
Interview date10 Feb 2021
Coding problem1

He asked me some general Questions

1. Basic HR Questions

Introduce yourself, why do you want to join the company, what do you know about the company etc.

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
Similar interview experiences
Software Developer
2 rounds | 3 problems
Interviewed by Hexaview Tech
1864 views
0 comments
0 upvotes
company logo
SDE - 1
3 rounds | 7 problems
Interviewed by OYO
4112 views
0 comments
0 upvotes
company logo
SDE - 1
3 rounds | 9 problems
Interviewed by Salesforce
3053 views
0 comments
0 upvotes
company logo
System Engineer
2 rounds | 2 problems
Interviewed by Tata Consultancy Services (TCS)
2629 views
0 comments
0 upvotes
Companies with similar interview experiences
company logo
Application Engineer
3 rounds | 4 problems
Interviewed by Oracle
3470 views
0 comments
0 upvotes
company logo
Application Engineer
4 rounds | 5 problems
Interviewed by Newgen Software
617 views
0 comments
0 upvotes
company logo
Application Engineer
3 rounds | 5 problems
Interviewed by Newgen Software
600 views
0 comments
0 upvotes