Activity selection problem

The activity selection problem is about choosing the maximum number of activities that don’t overlap, given their start and end times. Imagine scheduling meetings or events efficiently so that you can attend as many as possible without conflicts. The goal is to find a set of activities where none of them overlap in time, allowing for the greatest possible attendance or utilization of available time slots. This problem is common in resource management and planning, helping organize schedules optimally when multiple tasks or events compete for the same time period.