Problems
Arena
Merry Christmas 2021
Solved a problem in Christmas or Christmas Eve 2021
Condition Solve 1 or more previously unsolved problems between 6:00 AM on December 24, 2021 and 6:00 AM on December 26, 20213.5K
Midsummer Memories
Condition Achieve a score of over 1,800 in the Postcard Decoration Event 20221.4K
ICPC World Finals Dhaka
Condition Participated in ICPC World Finals Dhaka Cheering Event871
Full Binary Christmas Tree
Condition Reach level 4 or deeper on the deepest ornament card in the Make a Tree event, 20221.1K
๋ฉ๋ฆฌ ํฌ๋ฆฌ์ค๋ง์ค 2023
2023๋ ํฌ๋ฆฌ์ค๋ง์ค ์ด๋ธ ๋๋ ํฌ๋ฆฌ์ค๋ง์ค์ ํ ๋ฌธ์ ์ด์ ํด๊ฒฐํ๋ค
Condition 2023๋ 12์ 24์ผ ์ค์ 6์๋ถํฐ 2023๋ 12์ 26์ผ ์ค์ 6์ ์ฌ์ด์ ์ด์ ์ ํ์ง ์์๋ ๋ฌธ์ ์ค ์๋ฌด ๋ฌธ์ ๋ ํ ๋ฌธ์ ์ด์ ํด๊ฒฐ5.5K