After completing the code test, five days later the recruiter contacted me to ask for the best time to call and follow up. I told her to call me at any time, but she never did.

After waiting for seven days, I wrote to her to inquire about the next steps.

I then received an email stating that I had not been selected.

They made me waste my time waiting, only to tell me no. I do not recommend wasting your time with this company.

Implement the mirror algorithm using binary trees.