I had applied online and was contacted by a recruiter within a few days. After the initial discussion about the company and my experience, I was scheduled for a phone interview.

The phone interview did not go well, as the interviewer was not speaking clearly. He did not understand my statements and repeatedly asked me to repeat myself. This was frustrating because he could not understand my words. Even though all my answers were correct, I felt frustrated as he was not grasping all of them.

How would you find two numbers that add to a sum in an array?

How would you find three numbers that add to a sum in an array?

How would you implement a hash table on your own?

Write the code for implementing your own hash table.