Problems
Arena
The Real Final Ghudegy Cup 2 (2020)
Solved problem A+B (MC) within the competition time of the Real Final Ghudegy Cup 2 (2020)
Solved problem A+B (MC) within the competition time of the Real Final Ghudegy Cup 2 (2020)
54
21st National Assembly Election (2020)
Solved the 21st National Assembly Election problem (#18891) by April 21, 2020
Solved the 21st National Assembly Election problem (#18891) by April 21, 2020
56
Beta Contributor
Contributed once or more between July 13, 2019 and June 4, 2020
Contributed once or more between July 13, 2019 and June 4, 2020
442
2020 with BOJ
Solved problem A within the competition time of Good Bye, BOJ 2020!
Solved problem A within the competition time of Good Bye, BOJ 2020!
337
1 Solve
Celebrated the 1st anniversary of solved.ac
Celebrated the 1st anniversary of solved.ac
5K
Level 1 Sprout
Solved problems for 2 days in a row
Solved problems for 2 days in a row
123K
Level 2 Sprout
Solved problems for 4 days in a row
Solved problems for 4 days in a row
78K
Level 3 Sprout
Solved problems for 8 days in a row
Solved problems for 8 days in a row
36K
Level 4 Sprout
Solved problems for 16 days in a row
Solved problems for 16 days in a row
19K
Level 5 Sprout
Solved problems for 32 days in a row
Solved problems for 32 days in a row
11K
Level 6 Sprout
Solved problems for 64 days in a row
Solved problems for 64 days in a row
6.6K
Level 7 Sprout
Solved problems for 128 days in a row
Solved problems for 128 days in a row
3.4K
Level 8 Sprout
Solved problems for 256 days in a row
Solved problems for 256 days in a row
1.6K
Spent 2021 with BOJ
Solved 1 or more problems in Good Bye, BOJ 2021!
Solved 1 or more problems in Good Bye, BOJ 2021!
644
Binary Game 2 (2022)
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
747
Hello, world! (2022)
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
Solved uncountable problem in the Real Final Ghudegy Cup 2 2
747
★★Seventeen Stars★★ (2022)
Achieved 17-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
Achieved 17-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
2.1K
★★Twenty-two Stars★★ (2022)
Achieved 22-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
Achieved 22-star enchant at the 2022 April Fool's Day Hanbyeol Force Event
1K
2 Solves
Celebrated the 2nd anniversary of solved.ac
Celebrated the 2nd anniversary of solved.ac
9.7K
Summer Postcard Decoration: Top 1,000 (2022)
Achieved a rank of top 1,000 in the Summer Postcard Decoration event, 2022
Achieved a rank of top 1,000 in the Summer Postcard Decoration event, 2022
884