Milky's note

https://www.hackerrank.com/challenges/weather-observation-station-20/problem?isFullScreen=true&h_r=next-challenge&h_v=zen Weather Observation Station 20 | HackerRank Query the median of Northern Latitudes in STATION and round to 4 decimal places. www.hackerrank.com [문제] A median is defined as a number separating the higher half of a data set from the lower half. Query the median of the Northern ..

https://www.hackerrank.com/challenges/weather-observation-station-19/problem?isFullScreen=true Weather Observation Station 19 | HackerRank Query the Euclidean Distance between two points and round to 4 decimal digits. www.hackerrank.com [문제] Consider P1(a,c) and P2(b,d) to be two points on a 2D plane where (a,b) are the respective minimum and maximum values of Northern Latitude (LAT_N) and (c,d)..

https://www.hackerrank.com/challenges/weather-observation-station-18/problem?isFullScreen=true Weather Observation Station 18 | HackerRank Query the Manhattan Distance between two points, round or truncate to 4 decimal digits. www.hackerrank.com [문제] 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 happen..

https://www.hackerrank.com/challenges/the-company/problem?isFullScreen=true New Companies | HackerRank Find total number of employees. www.hackerrank.com [문제] Amber's conglomerate corporation just acquired some new companies. Each of the companies follows this hierarchy: Given the table schemas below, write a query to print the company_code, founder name, total number of lead managers, total num..