3DPLM Software Solutions
Winomechanic Interview Questions and Answers
Q1. Given 9 identical coins what number of minimum comparisons between them will be required to determine one of the heavier coin
Minimum number of comparisons required to determine one of the heavier coin among 9 identical coins.
Divide the coins into groups of 3.
Weigh any two groups against each other.
If they are equal, the heavier coin is in the third group.
If one group is heavier, weigh two coins from that group against each other.
If they are equal, the heavier coin is the remaining one.
If one coin is heavier, that is the answer.
Q2. if i am having sorted array and then i am inserting a new element into the array so which algorithm should be used to minimize time complexity
Binary search algorithm should be used to minimize time complexity.
Binary search algorithm has a time complexity of O(log n).
It is efficient for searching in a sorted array.
The algorithm works by repeatedly dividing the search interval in half.
Example: If the array is [1, 3, 5, 7, 9] and we want to insert 6, we can use binary search to find the index where 6 should be inserted.
Once we find the index, we can shift the elements to the right and insert the new element.
This will ...read more
Q3. make a program for this where input was no. of coins and output is no. of comparisons required.
Program to calculate no. of comparisons required based on no. of coins input.
Create a function that takes the input of no. of coins
Use a loop to compare each coin with every other coin
Increment the comparison count for each comparison made
Return the total comparison count
Q4. what according to you is growth?
Growth is the process of developing and improving oneself or something over time.
Growth involves continuous learning and development
It can be personal, professional, or organizational
It requires setting goals and working towards them
Examples include learning new skills, expanding one's network, and increasing revenue
Growth is essential for success and fulfillment
Q5. Tell different type is SQL joins?
SQL joins are used to combine data from two or more tables based on a related column between them.
Inner join: returns only the matching rows from both tables
Left join: returns all the rows from the left table and matching rows from the right table
Right join: returns all the rows from the right table and matching rows from the left table
Full outer join: returns all the rows from both tables, with NULL values in the columns where there is no match
Cross join: returns the Cartesi...read more
Q6. why 3DPLM?
3DPLM is a leading software development company with a strong focus on innovation and growth.
3DPLM offers exciting opportunities to work on cutting-edge technologies and projects.
The company has a great work culture and provides ample learning and development opportunities.
3DPLM has a strong reputation in the industry and is known for delivering high-quality software solutions.
Working at 3DPLM provides exposure to a diverse range of clients and industries.
The company values i...read more
Q7. Explain SDLC?
SDLC stands for Software Development Life Cycle. It is a process used to design, develop, and test software applications.
SDLC is a structured approach to software development.
It consists of several phases including requirements gathering, design, coding, testing, and maintenance.
Each phase has specific deliverables and activities.
SDLC models include Waterfall, Agile, and DevOps.
Example: In the requirements gathering phase, the software developer works with stakeholders to und...read more
Q8. Explain oops concept.
OOPs is a programming paradigm based on the concept of objects that interact with each other.
OOPs stands for Object-Oriented Programming.
It focuses on creating objects that have properties and methods.
Encapsulation, Inheritance, and Polymorphism are the three main pillars of OOPs.
Encapsulation is the process of hiding the implementation details of an object.
Inheritance allows a new class to be based on an existing class.
Polymorphism allows objects of different classes to be t...read more
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