I attended a job fair at school and was e-mailed for an interview.

The interviewer offered to conduct the coding challenge in C++, C, or Python. A friend who interviewed with the same company was offered a Java interview.

I answered all questions correctly and wrote the methods quite quickly, passing all edge cases. The interviewer was polite, but I was rejected the next day.

My friend, who interviewed with the same company, received much easier questions (e.g., finding a missing number in an array). Despite failing both methods, they were still offered an internship. I strongly feel this company is unprofessional in its hiring practices.

Print nodes in an unbalanced tree in BFS order.

Turn the unbalanced tree into a linked list by pointer manipulation.