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URL : https://www.hackerrank.com/challenges/30-class-vs-instance/problem Objective In this challenge, we’re going to learn about the difference between a class and an instan...

URL : https://www.hackerrank.com/challenges/30-conditional-statements/problem Objective In this challenge, we’re getting started with conditional statements. Check out the T...

URL : https://www.hackerrank.com/challenges/30-operators/problem Objective In this challenge, you’ll work with arithmetic operators. Check out the Tutorial tab for learning ...

URL : https://www.hackerrank.com/challenges/30-data-types/problem Objective Today, we’re discussing data types. Check out the Tutorial tab for learning materials and an inst...

URL : https://www.hackerrank.com/challenges/30-hello-world/problem Objective In this challenge, we review some basic concepts that will get you started with this series. You...

Weather Observation Station 9 URL : https://www.hackerrank.com/challenges/weather-observation-station-9/problem Query the list of CITY names from STATION that do not start with vowels. Your r...

Weather Observation Station 8 URL : https://www.hackerrank.com/challenges/weather-observation-station-8/problem Query the list of CITY names from STATION which have vowels (i.e., a, e, i, o, ...

Weather Observation Station 7 URL : https://www.hackerrank.com/challenges/weather-observation-station-7/problem Query the list of CITY names ending with vowels (a, e, i, o, u) from STATION. Y...

Weather Observation Station 6 URL : https://www.hackerrank.com/challenges/weather-observation-station-6/problem Query the list of CITY names starting with vowels (i.e., a, e, i, o, or u) from...

Weather Observation Station 5 URL : https://www.hackerrank.com/challenges/weather-observation-station-5/problem Query the two cities in STATION with the shortest and longest CITY names, as we...