33. Weather Observation Station 18: Solution

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Consider $P_1(a, b)$ and $P_2(c, d)$ to be two points on a 2D plane.

• $a$ happens to equal the minimum value in Northern Latitude (LAT_N in STATION).
• $b$ happens to equal the minimum value in Western Longitude (LONG_W in STATION).
• $c$ happens to equal the maximum value in Northern Latitude (LAT_N in STATION).
• $d$ happens to equal the maximum value in Western Longitude (LONG_W in STATION).

Query the Manhattan Distance between points $P_1$ and $P_2$ and round it to a scale of 4 decimal places.

The STATION table is described as follows:

where LAT_N is the northern latitude and LONG_W is the western longitude.

SELECT ROUND(ABS(MAX(LAT_N) - MIN(LAT_N)) + ABS(MAX(LONG_W) - MIN(LONG_W)), 4) AS Distance
FROM STATION;

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