Welcome to Subscribe On Youtube
1459. Rectangles Area
Description
Table: Points
+++  Column Name  Type  +++  id  int   x_value  int   y_value  int  +++ id is the column with unique values for this table. Each point is represented as a 2D coordinate (x_value, y_value).
Write a solution to report all possible axisaligned rectangles with a nonzero area that can be formed by any two points from the Points
table.
Each row in the result should contain three columns (p1, p2, area)
where:
p1
andp2
are theid
's of the two points that determine the opposite corners of a rectangle.area
is the area of the rectangle and must be nonzero.
Return the result table ordered by area
in descending order. If there is a tie, order them by p1
in ascending order. If there is still a tie, order them by p2
in ascending order.
The result format is in the following table.
Example 1:
Input: Points table: ++++  id  x_value  y_value  ++++  1  2  7   2  4  8   3  2  10  ++++ Output: ++++  p1  p2  area  ++++  2  3  4   1  2  2  ++++ Explanation: The rectangle formed by p1 = 2 and p2 = 3 has an area equal to 42 * 810 = 4. The rectangle formed by p1 = 1 and p2 = 2 has an area equal to 24 * 78 = 2. Note that the rectangle formed by p1 = 1 and p2 = 3 is invalid because the area is 0.
Solutions

# Write your MySQL query statement below SELECT p1.id AS p1, p2.id AS p2, ABS(p1.x_value  p2.x_value) * ABS(p1.y_value  p2.y_value) AS area FROM Points AS p1 JOIN Points AS p2 ON p1.id < p2.id WHERE p1.x_value != p2.x_value AND p1.y_value != p2.y_value ORDER BY area DESC, p1, p2;