HackerRank-Weather Observation Station 18

Consider P1(a,b) and P2(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 P1 and P2 and round it to a scale of 4 decimal places.

Input Format

The STATION table is described as follows:

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

SourceCode

SELECT ROUND((ABS(KK.c — KK.a)+ABS(KK.d- KK.b)),4)
FROM (
SELECT MIN(LAT_N) AS a,
MIN(LONG_W) AS b,
MAX(LAT_N) AS c,
MAX(LONG_W) AS d
FROM STATION) AS KK