College students' orienteering competition is conducted in teams, and the route of the competition map consists of several necessary points and free points. Each player is equipped with a time card and a map. The required points need to be dotted by team members in the specified order (members don't need to arrive at the same time). In the process of completing the required points, they are free to choose free points, and the free points will be visited by the team to complete the punch-in task. All free points must be visited by at least one member, and missing a point is invalid. Team performance is ranked by the time when the last athlete in the team reaches the finish line. If the performance is effective, the one who takes the shortest time wins.