Count Levels

Problem Overview

• Count the number of hierarchy levels between two employees in an organization, even if they are not in a direct managerial line.
• Input: first line has two names to compare; subsequent lines list employee/manager pairs covering the complete hierarchy; constraints: N/A. Output: an integer count of levels between the two names.
• Real-world context: helps track organizational change and promotions across the company.
• From Blackrock interviews; a practical coding interview and interview question problem.