Get Active Requests Count

Problem Overview

• Determine the number of active requests at each second as a queue is processed.
• Input: integer requests count and list wait_time[i]; Output: array of counts per second until all requests are removed.
• Each second, serve the next request for one second; remove any remaining request that exceeds its wait time.
• Models a server request queue with per-request timeouts.
• From Amazon interviews; a coding interview problem and interview question.