[해커랭크/SQL] 36. Weather Observation Station 18

👉https://www.hackerrank.com/challenges/weather-observation-station-18/problem?isFullScreen=true

 

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🤔 문제 분석

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  decimal places.

맨하튼 거리: |c-a| + |d-b|

 

💡 풀이

 

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