There are 100 people attending a party, and everyone has at least one friend at the party. Then how many of these 100 people have at least the same number of friends.
一个联欢会有100人参加，每个人在这个会上至少有一个朋友．那么这100人中至少有多少个人的朋友数目相同．
<result>2</result>