Complete 3 problems in 1d. Speed achievement.

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

Complete 2 problems in 1d. Speed achievement.

Complete 5 coding problems. Milestone achievement.

Complete 5 normal difficulty problems. Difficulty mastery.

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.

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

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

Complete 1 coding problem. Milestone achievement.

Complete 3 coding problems. Milestone achievement.