A: new

Author: Shuo

problems/last-person-to-fit-in-the-elevator/README.md

@@ -11,4 +11,51 @@
 
 ## [1204. Last Person to Fit in the Elevator (Medium)](https://leetcode.com/problems/last-person-to-fit-in-the-elevator "最后一个能进入电梯的人")
 
+<p>Table: <code>Queue</code></p>
 
+<pre>
++-------------+---------+
+| Column Name | Type    |
++-------------+---------+
+| person_id   | int     |
+| person_name | varchar |
+| weight      | int     |
+| turn        | int     |
++-------------+---------+
+person_id is the primary key column for this table.
+This table has the information about all people waiting for an elevator.
+The <code>person_id</code>&nbsp;and <code>turn</code> columns will contain all numbers from 1 to n, where n is the number of rows in the table.
+</pre>
+
+<p>&nbsp;</p>
+
+<p>The maximum weight the elevator can hold is <strong>1000</strong>.</p>
+
+<p>Write an SQL query to find the&nbsp;<code>person_name</code> of the last person who will fit in the elevator without exceeding the weight limit. It is guaranteed that the person who is&nbsp;first in the queue can fit in the elevator.</p>
+
+<p>The query result format is in the following example:</p>
+
+<pre>
+Queue table
++-----------+-------------------+--------+------+
+| person_id | person_name       | weight | turn |
++-----------+-------------------+--------+------+
+| 5         | George Washington | 250    | 1    |
+| 3         | John Adams        | 350    | 2    |
+| 6         | Thomas Jefferson  | 400    | 3    |
+| 2         | Will Johnliams    | 200    | 4    |
+| 4         | Thomas Jefferson  | 175    | 5    |
+| 1         | James Elephant    | 500    | 6    |
++-----------+-------------------+--------+------+
+
+Result table
++-------------------+
+| person_name       |
++-------------------+
+| Thomas Jefferson  |
++-------------------+
+
+Queue table is ordered by turn in the example for simplicity.
+In the example George Washington(id 5), John Adams(id 3) and Thomas Jefferson(id 6) will enter the elevator as their weight sum is 250 + 350 + 400 = 1000.
+Thomas Jefferson(id 6) is the last person to fit in the elevator because he has the last turn in these three people.
+</pre>