https://www.hackerrank.com/challenges/weather-observation-station-9/problem
Weather Observation Station 6 | HackerRank
Query a list of CITY names beginning with vowels (a, e, i, o, u).
www.hackerrank.com
Query the list of CITY names from STATION that do not start with vowels. Your result cannot contain duplicates.
Input Format
The STATION table is described as follows:
a,e,i,o,u 로 시작하지 않는 CITY를 찾는 문제
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