tree traversal without recursion
Software Engineer Intern Interview Questions
9,359 software engineer intern interview questions shared by candidates
difference between an abstract class and interface
How to implement the user recommendations in Amazon.com?
Write code to implement the T9 (predictive text) feature and make it efficient. Given a sequence of integers as input, output valid English words that can be constructed. Each integer maps to 3 letters - like in any dialpad.
Nothing really unexpected. Simple OOP concept. It's not like "design a class for elevator" stuff that complex.
Q. A question on BFS.
Most unexpected- Recruiter was difficult to reach and had about <12hrs warning before scheduling interview. The actual interviews went well- the engineers were easy to talk to and walked through the problem solving.
No unexpected questions
Find an alternative way to optimize the algorithm.
Implement code to calculate the Fibonacci number.
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