Datwyler Group Team Member Interview Questions and Answers

Hacker rank test on Python, SQL and Aptitude , English

Q1. Technical from Hiring Manager
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Q2. How many Surf excel are consuming in Gurgaon area on daily basis Advance excel Questions. Python and SQL basics
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Q1. Technical -Senior Manager-Product Management
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Q1. HOD Product Management- 1: 1 Techno Managerial -
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Q1. Salary Discussion and Hr rounds -general question
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Percentage, speed time distance, interest etc.

Q1. Basic Engineering questions on diodes, circuits etc.
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Q1. Basic Sales questions, situational questions, concepts etc.
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Q1. Tell me about yourself, commitment pf employee, salary etc.
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Q1. Where do you see yourself in 5 years?
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Q1. Present on a topic of your choice
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Round duration - 120 minutes
Round difficulty - Easy

The test had it's webcam on, we were not allowed to go out of the frame.

Q1. 
Nth Fibonacci Number Problem Statement
Calculate the Nth term in the Fibonacci sequence, where the sequence is defined as follows: F(n) = F(n-1) + F(n-2), with initial conditions F(1) = F(2) = 1.
Input:
...read more
Ans. 
The program calculates the Nth Fibonacci number using a recursive formula.
• The Fibonacci series starts with 1, 1, and each subsequent number is the sum of the two preceding numbers.

• The program uses a recursive function to calculate the Nth Fibonacci number.

• The time complexity of the program is O(2^N), which can be optimized using memoization or dynamic programming.
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Q2. 
Longest Consecutive Sequence Problem Statement
You are provided with an unsorted array/list ARR of N integers. Your task is to determine the length of the longest consecutive sequence present in the array...read more
Ans. 
The task is to find the length of the longest consecutive sequence in an unsorted array of integers.
• Sort the array to bring consecutive numbers together

• Iterate through the sorted array and keep track of the current consecutive sequence length

• Update the maximum length if a longer sequence is found
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Round duration - 30 minutes
Round difficulty - Medium

The interview was online from home.

Q1. 
Reverse the String Problem Statement
You are given a string STR which contains alphabets, numbers, and special characters. Your task is to reverse the string.
Example:
Input:
STR = "abcde"
Output:
"e...read more
Ans. 
The task is to reverse a given string containing lowercase letters, uppercase letters, digits, and special characters.
• Iterate through the string from the last character to the first character and append each character to a new string.

• Alternatively, you can use built-in string reversal functions or methods available in your programming language.

• To solve the follow-up question with O(1) space complexity, you can use a tw...read more
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Round duration - 20 minutes
Round difficulty - Easy

This was last round. In this round interviewer ask about me and what i know about company. Also he ask about my projects as well as my future goals . 
The interviewer was very understanding and supportive.

2 dsa questions need to be implemented in 1hr

Q1. Projects you have worked on. 1. vector implementation in C++
Ans. 
Implemented vector data structure in C++
• Used templates to create a generic vector class

• Implemented basic vector operations like push, pop, insert, erase

• Optimized vector resizing by using exponential growth

• Used iterators to traverse the vector elements

• Implemented vector algorithms like sort and binary search
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Q1. Compensation, expected and other document submitting.
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Q1. System architecture
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Q2. Dict ,list and other questions
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