sef
Be the first to solve a problem in a competition
Solve 500 problems
Solve problems of all difficulty levels with 100% score
Solve a problem within 10 minutes of competition start
Solve 100 problems
Achieve 100% on a Hard problem
Solve 250 problems
Solve 50 problems
Achieve 100% on an Easy problem
Achieve 100% on a Medium problem
Solve your first problem
Solve 10 problems
Win first place in a competition
Participate in 50 competitions
Finish in the top 10% of a competition
Participate in 25 competitions
Win second place in a competition
Win third place in a competition
Participate in 5 competitions
Finish in the top 3 of a competition
Participate in 10 competitions
Participate in your first competition
Maintain a 100-day submission streak
Maintain a 30-day submission streak
Maintain a 14-day submission streak
Submit a solution before 8 AM
Submit a solution after midnight
Maintain a 7-day submission streak
