# 0602. Friend Requests II: Who Has the Most Friends

<https://leetcode.com/problems/friend-requests-ii-who-has-the-most-friends>

## Description

In social network like Facebook or Twitter, people send friend requests and accept others' requests as well.

Table `request_accepted`

```
+--------------+-------------+------------+
| requester\_id | accepter\_id | accept\_date|
|--------------|-------------|------------|
| 1            | 2           | 2016\_06-03 |
| 1            | 3           | 2016-06-08 |
| 2            | 3           | 2016-06-08 |
| 3            | 4           | 2016-06-09 |
+--------------+-------------+------------+
This table holds the data of friend acceptance, while **requester\_id** and **accepter\_id** both are the id of a person.
```

Write a query to find the the people who has most friends and the most friends number under the following rules:

* It is guaranteed there is only 1 people having the most friends.
* The friend request could only been accepted once, which mean there is no multiple records with the same **requester\_id** and **accepter\_id** value.

For the sample data above, the result is:

```
Result table:
+------+------+
| id   | num  |
|------|------|
| 3    | 3    |
+------+------+
The person with id '3' is a friend of people '1', '2' and '4', so he has 3 friends in total, which is the most number than any others.
```

**Follow-up:**\
In the real world, multiple people could have the same most number of friends, can you find all these people in this case?

## ac

```java
```


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