Update 626. Exchange Seats.sql

Author: iamAntimPal

LeetCode SQL 50 Solution/626. Exchange Seats.sql

@@ -0,0 +1,55 @@
+626. Exchange Seats
+Solved
+Medium
+Topics
+Companies
+SQL Schema
+Pandas Schema
+Table: Seat
+
++-------------+---------+
+| Column Name | Type    |
++-------------+---------+
+| id          | int     |
+| student     | varchar |
++-------------+---------+
+id is the primary key (unique value) column for this table.
+Each row of this table indicates the name and the ID of a student.
+The ID sequence always starts from 1 and increments continuously.
+ 
+
+Write a solution to swap the seat id of every two consecutive students. If the number of students is odd, the id of the last student is not swapped.
+
+Return the result table ordered by id in ascending order.
+
+The result format is in the following example.
+
+ 
+
+Example 1:
+
+Input: 
+Seat table:
++----+---------+
+| id | student |
++----+---------+
+| 1  | Abbot   |
+| 2  | Doris   |
+| 3  | Emerson |
+| 4  | Green   |
+| 5  | Jeames  |
++----+---------+
+Output: 
++----+---------+
+| id | student |
++----+---------+
+| 1  | Doris   |
+| 2  | Abbot   |
+| 3  | Green   |
+| 4  | Emerson |
+| 5  | Jeames  |
++----+---------+
+Explanation: 
+Note that if the number of students is odd, there is no need to change the last one's seat.
+
+