2 10 Pts N Students Class Friends Friendship Transitive Nature Example Direct Friend B B D Q37155114

(2) (10 pts) There are N students in a class. Some of them are friends, while some are not Their friendship is transitive in nature. For example, if A is a direct friend of B, and B is a direct friend of C, then A is an indirect friend of C. And we defined a friend circle is a group of students who are direct or indirect friends Given a N*N matrix M

OR

 

OR