1. Was contacted by a recruiter. She explained the position and company.
2. Contacted by phone a couple of days later by the hiring manager, who asked about my resume and projects.
3. Contacted by phone for a technical interview. Asked about various projects on my resume and one coding question.
4. Was contacted by the recruiter, who said they chose a different candidate.

Implement a queue using two stacks. Enqueue and Dequeue.