ROUND 3A: Technical Interview – 1
You should know your resume. Top to bottom. They asked me about my projects which were on Machine Learning and Web dev. I was asked to explain the working of the ML model and the accuracy etc. You should know every aspect of your project and should be able to put out the SDLC of the project.
Pen and paper coding questions were asked:
- Given a string, return char and its occurrence { ABC: a3b2c4 }
- Reverse a string
- Two Sum Problem (asked to optimize)
I was asked to code in Java, Javascript or Python, whichever language I am comfortable with.
- Puzzle: Given 10 bags of Infinite number of coins in each bag. Every coin in every bag weighs 1 gm EXCEPT one bag in which the coins weigh 1.1 gm each. Find the bag that has faulty coins. You have a digital weighing machine and can weigh only ONCE.
Solution: Iterate from bag 1 to bag 10. Take 1 coin from bag 1, 2 coins from bag 2, 3 from bag…. and 10 from bag 10. The total weight should be 10 gm but because the weight of the faulty coin is 0.1 gm more, it will be reflected in the total weight. eg. if bag 4 has faulty coins, then the total weight would 10.4
EPAM India Interview Experience
EPAM India visited my institution to hire interns/PPOs for their Hyderabad location.
The Hiring Process was as follows:
- Online Test
- Group Discussion
- Technical Interview – 1
- Technical Interview – 2 (optional)
- HR Interview
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