The schedule of activities for a room consists of an activity list. Each activity has a description, a start time, and an end time. You can add activities to the list, but they must be compatible with...

The schedule of activities for a room consists of an activity list. Each activity has a description, a start time, and an end time. You can add activities to the list, but they must be compatible with the other activities. Two activities are incompatible if their time intervals overlap. Specify the ADT activity list.