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Practice Challenges

Build Problem-Solving Muscle

Standalone coding challenges checked against real test cases. Earn points, keep your streak alive, unlock badges.

ChallengeDifficultyLanguageReward
Sum Two Numbers
Learn Python 3
easy Python 50 XP
Reverse a String
Learn Python 3
easy Python 50 XP
Count the Vowels
Learn Python 3
easy Python 50 XP
Double It easy Javascript 50 XP
Greet the User easy Javascript 50 XP
Sum Two Numbers (Java) easy Java 75 XP
High Scores (SQL) easy Sql 50 XP
Even or Odd (Java) easy Java 50 XP
Adults Only (SQL) easy Sql 50 XP
Reverse a String (JavaScript) easy Javascript 50 XP
Maximum of a List
Learn Python 3
medium Python 75 XP
FizzBuzz
Learn Python 3
medium Python 75 XP