Send the Alien back home

Send the Alien back home

Send the Alien back home

Send the Alien back home

Complete 10 normal difficulty quizzes. Difficulty mastery.

Get 100% on 10 normal difficulty quizzes. Perfect score achievement.

Complete 50 quizzes in 3 different topics. Advanced cross-training.

Complete 250 easy difficulty quizzes. Difficulty mastery.

Get 100% on 250 different quizzes. Perfect score achievement.

Complete 250 quizzes. Milestone achievement.

Complete 10 quizzes between 05:00-08:00 (early morning). Rise and conquer at dawn!

Complete at least 1 quiz per day for 7 consecutive days. Daily streak achievement.

Complete 10 quizzes between 22:00-06:00 (night time). Master quizzes while others sleep!

Complete 100 quizzes in 1w. Speed achievement.

Complete 100 quizzes in 1m. Speed achievement.

Complete 25 quizzes in 5 different topics. Advanced cross-training.

Win 10 quizzes in a row without any failures. Streak achievement.

Complete 10 quizzes successfully after experiencing a failure. Bounce back stronger!

Complete 10 quizzes in 5 different topics. Advanced cross-training.

Complete 75 quizzes in 3d. Speed achievement.

Complete 25 quizzes in 3h. Speed achievement.

Complete 50 quizzes in 2d. Speed achievement.

Complete 50 quizzes in 1w. Speed achievement.

Get 100% on 50 quizzes in 1w. Elite achievement.

Complete 50 quizzes in any single major topic. Topic depth achievement.

Complete at least 1 quiz per day for 3 consecutive days. Daily streak achievement.

Complete 15 quizzes in 6h. Speed achievement.

Complete 25 quizzes in 1d. Speed achievement.

Complete 25 quizzes in 2d. Speed achievement.

Complete 25 quizzes in 1w. Speed achievement.

Get 100% on 20 quizzes in 1d. Elite achievement.

Complete 25 quizzes in 3 different topics. Advanced cross-training.

Win 5 quizzes in a row without any failures. Streak achievement.

Complete 5 quizzes successfully after experiencing a failure. Bounce back stronger!

Complete 10 quizzes in 1h. Speed achievement.

Complete 10 quizzes in 3h. Speed achievement.

Complete 10 quizzes in 1d. Speed achievement.

Complete 100 easy difficulty quizzes. Difficulty mastery.

Get 100% on 6 quizzes in 1h. Elite achievement.

Complete 5 quizzes in 1h. Speed achievement.

Complete 5 quizzes in 1d. Speed achievement.

Win 3 quizzes in a row without any failures. Streak achievement.

Complete 3 quizzes in 1h. Speed achievement.

Complete 2 quizzes in 1h. Speed achievement.

Complete at least 1 quiz in 3 different major topics. Cross-training achievement.

Complete at least 1 quiz in 5 different major topics. Cross-training achievement.

Complete at least 1 quiz in 10 different major topics. Cross-training achievement.

Complete at least 1 quiz in 15 different major topics. Cross-training achievement.

Complete at least 1 quiz in 20 different major topics. Cross-training achievement.

Complete 1 easy quiz in 10 different topics. Easy difficulty breadth achievement.

Complete 10 easy quizzes in 10 different topics. Easy difficulty breadth achievement.

Complete 50 easy quizzes in 10 different topics. Easy difficulty breadth achievement.

Complete 10 quizzes in any single major topic. Topic depth achievement.

Complete 25 quizzes in any single major topic. Topic depth achievement.

Complete 10 quizzes in 3 different topics. Advanced cross-training.

Complete 1 quiz. Milestone achievement.

Complete 5 quizzes. Milestone achievement.

Complete 10 quizzes. Milestone achievement.

Complete 25 quizzes. Milestone achievement.

Complete 50 quizzes. Milestone achievement.

Complete 100 quizzes. Milestone achievement.

Complete 10 easy difficulty quizzes. Difficulty mastery.

Complete 25 easy difficulty quizzes. Difficulty mastery.

Complete 50 easy difficulty quizzes. Difficulty mastery.

Get 100% on 1 different quiz. Perfect score achievement.

Get 100% on 5 different quizzes. Perfect score achievement.

Get 100% on 10 different quizzes. Perfect score achievement.

Get 100% on 25 different quizzes. Perfect score achievement.

Get 100% on 50 different quizzes. Perfect score achievement.

Get 100% on 100 different quizzes. Perfect score achievement.

Get 100% on 10 easy difficulty quizzes. Perfect score achievement.

Complete 25 problems using Go. Language mastery.

Complete 10 problems using Go. Language mastery.

Complete at least 5 problems in 4 different programming languages. Polyglot achievement.

Complete 500 coding problems. Milestone achievement.

Complete 5 problems between 05:00-08:00 (early morning). Early bird achievement.

Got caught cheating on 5 problems. Maybe try solving them yourself next time?

Complete 100 easy difficulty problems. Difficulty mastery.

Complete 3 hard difficulty problems. Difficulty mastery.

Complete 5 hard difficulty problems. Difficulty mastery.

Complete 10 hard difficulty problems. Difficulty mastery.

Complete 10 problems using C. Language mastery.

Complete at least 5 problems in 3 different programming languages. Polyglot achievement.

Complete 5 easy difficulty problems. Difficulty mastery.

Complete 10 easy difficulty problems. Difficulty mastery.

Complete 25 easy difficulty problems. Difficulty mastery.

Complete 50 easy difficulty problems. Difficulty mastery.

Complete 3 problems in 1d. Speed achievement.

Complete 50 problems in 1m. Speed achievement.

Complete 2 problems in 1d. Speed achievement.

Complete 10 problems with at least 2 attempts each. Persistence achievement.

Complete 20 problems with at least 3 attempts each. Persistence achievement.

Complete 15 problems with clean solving patterns. Anti-cheat champion.

Complete 30 problems with clean solving patterns. Anti-cheat champion.

Complete at least 2 problems in 3 different categories. Topic breadth.

Complete at least 3 problems in 5 different categories. Topic breadth.

Complete at least 5 problems in 8 different categories. Topic breadth.

Complete 5 problems between 22:00-06:00 (night time). Night coding achievement.

Complete 15 problems between 22:00-06:00 (night time). Night coding achievement.

Complete 30 problems between 22:00-06:00 (night time). Night coding achievement.

Complete 10 problems successfully after previous failures. Resilience achievement.

Complete 15 problems successfully after previous failures. Resilience achievement.

Complete 3 problems in a row without failures. Winning streak achievement.

Complete 5 problems in a row without failures. Winning streak achievement.

Complete 10 problems in a row without failures. Winning streak achievement.

Complete 15 problems in a row without failures. Winning streak achievement.

Complete 20 problems in a row without failures. Winning streak achievement.

Complete 50 problems in a row without failures. Winning streak achievement.

Complete 5 problems in any single topic category. Topic depth.

Complete 10 problems in any single topic category. Topic depth.

Complete 15 problems in any single topic category. Topic depth.

Complete 25 problems in any single topic category. Topic depth.

Complete 6 problems in 1w. Speed achievement.

Complete 10 problems in 1w. Speed achievement.

Complete 20 problems in 1m. Speed achievement.

Complete 100 problems in 3m. Speed achievement.

Pass all 7 testcases on first attempt for 1 problem. Perfect submission achievement.

Pass all 7 testcases on first attempt for 3 problems. Perfect submission achievement.

Pass all 7 testcases on first attempt for 5 problems. Perfect submission achievement.

Pass all 7 testcases on first attempt for 10 problems. Perfect submission achievement.

Pass all 7 testcases on first attempt for 25 problems. Perfect submission achievement.

Achieve average execution time < 0.1s across 5 problems. Speed efficiency.

Achieve average execution time < 0.1s across 10 problems. Speed efficiency.

Achieve average execution time < 0.1s across 25 problems. Speed efficiency.

Achieve average memory usage < 25.0MB across 5 problems. Memory efficiency.

Achieve average memory usage < 25.0MB across 10 problems. Memory efficiency.

Achieve average memory usage < 25.0MB across 25 problems. Memory efficiency.

Achieve both execution < 0.1s AND memory < 25.0MB across 5 problems. Optimal code.

Achieve both execution < 0.1s AND memory < 25.0MB across 10 problems. Optimal code.

Complete 3 problems after 3+ attempts. Shows learning and persistence.

Complete 5 problems after 3+ attempts. Shows learning and persistence.

Complete 5 problems successfully after previous failures. Resilience achievement.

Complete 100 coding problems. Milestone achievement.

Complete 250 coding problems. Milestone achievement.

Complete 5 normal difficulty problems. Difficulty mastery.

Complete 10 normal difficulty problems. Difficulty mastery.

Complete 25 normal difficulty problems. Difficulty mastery.

Complete 50 normal difficulty problems. Difficulty mastery.

Complete 100 normal difficulty problems. Difficulty mastery.

Complete 10 problems using Python. Language mastery.

Complete 25 problems using Python. Language mastery.

Complete 50 problems using Python. Language mastery.

Complete 100 problems using Python. Language mastery.

Complete 200 problems using Python. Language mastery.

Complete at least 3 problems in 2 different programming languages. Polyglot achievement.

Complete 1 coding problem. Milestone achievement.

Complete 3 coding problems. Milestone achievement.

Complete 5 coding problems. Milestone achievement.

Complete 10 coding problems. Milestone achievement.

Complete 15 coding problems. Milestone achievement.

Complete 25 coding problems. Milestone achievement.

Complete 50 coding problems. Milestone achievement.