mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-11-04 11:43:12 +08:00
49 lines
1.6 KiB
HTML
49 lines
1.6 KiB
HTML
<p>Table: <code>RequestAccepted</code></p>
|
|
|
|
<pre>
|
|
+----------------+---------+
|
|
| Column Name | Type |
|
|
+----------------+---------+
|
|
| requester_id | int |
|
|
| accepter_id | int |
|
|
| accept_date | date |
|
|
+----------------+---------+
|
|
(requester_id, accepter_id) is the primary key (combination of columns with unique values) for this table.
|
|
This table contains the ID of the user who sent the request, the ID of the user who received the request, and the date when the request was accepted.
|
|
</pre>
|
|
|
|
<p> </p>
|
|
|
|
<p>Write a solution to find the people who have the most friends and the most friends number.</p>
|
|
|
|
<p>The test cases are generated so that only one person has the most friends.</p>
|
|
|
|
<p>The result format is in the following example.</p>
|
|
|
|
<p> </p>
|
|
<p><strong class="example">Example 1:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong>
|
|
RequestAccepted table:
|
|
+--------------+-------------+-------------+
|
|
| 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 |
|
|
+--------------+-------------+-------------+
|
|
<strong>Output:</strong>
|
|
+----+-----+
|
|
| id | num |
|
|
+----+-----+
|
|
| 3 | 3 |
|
|
+----+-----+
|
|
<strong>Explanation:</strong>
|
|
The person with id 3 is a friend of people 1, 2, and 4, so he has three friends in total, which is the most number than any others.
|
|
</pre>
|
|
|
|
<p> </p>
|
|
<p><strong>Follow up:</strong> In the real world, multiple people could have the same most number of friends. Could you find all these people in this case?</p>
|