K Square Interview Questions and Answers

Q1. Educational details, last company details, working details
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Three coding online assessments - screening round.

Two to three coding questions based on dynamic programming.

Q1. Resume based and computer network
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Q1. Simple hr question
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Q1. Tell me about yourself
Ans. 
Experienced Senior Software Engineer with a passion for problem-solving and creating innovative solutions.
• Over 8 years of experience in software development

• Proficient in multiple programming languages such as Java, Python, and C++

• Strong background in designing and implementing scalable systems

• Led successful projects such as developing a real-time data analytics platform for a Fortune 500 company
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Q2. About techstacks
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DSA, problem solving

System design interview and prior experience in projects

Q1. What was the toughest problem you encountered in your previous assignments ?
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Q2. Given a choice, what would you have done differently in your previous assignments ?
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Q1. Details about the projects in your resume
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Q2. MYSQL codes in window function
Ans. 
MYSQL window functions allow for calculations across rows in a result set.
• Window functions are used to perform calculations across rows in a result set

• They are used with the OVER() clause

• Examples include ROW_NUMBER(), RANK(), DENSE_RANK(), and NTILE()

• They can be used to calculate running totals, moving averages, and more
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Q3. Mostly questions related to cricket tables which was told to be assumed
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Q1. Search in 2d matrix
Ans. 
Search for a target value in a 2D matrix efficiently.
• Use binary search on rows to find the potential row where the target value may exist.

• Then use binary search on that row to find the target value.
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Q2. Find quadraplets that sum to target
Ans. 
Find quadraplets in an array that sum up to a target value.
• Use a nested loop to iterate through all possible combinations of quadraplets.

• Keep track of the sum of each quadraplet and compare it to the target value.

• Return the quadraplets that match the target sum.
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Q1. Nth Greatest Element III (Leetcode)
Ans. 
Find the Nth greatest element in an array without sorting
• Use a priority queue to keep track of the N greatest elements

• Iterate through the array and add elements to the priority queue

• Return the top element from the priority queue as the Nth greatest element
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Q2. Heater Problem (Leetcode)
Ans. 
Heater Problem - Find minimum radius to cover all houses with heaters
• Sort the houses and heaters arrays

• For each house, find the closest heater using binary search

• Calculate the minimum radius needed to cover all houses
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