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Problem Category Points AC % ▾ Users
Cheerio Contest 1 S1/J4 - Going to School Uncategorized 5p 45.2% 142
Cheerio Contest 1 S3 - Stock Trading Uncategorized 7p 26.0% 52
Comparing Arrays Uncategorized 15p 16.9% 62
Cheerio Contest 1 S5 - Coin Game Uncategorized 15p 46.4% 35
Least Multiple Olympiads School 10p 8.1% 32
Levve Loves Segment Trees Uncategorized 15 12.6% 39
Cheerio Contest 1 J3 - Festival Uncategorized 5 45.5% 188
Cheerio Contest 1 J5 - Arithmetic Sequence Uncategorized 10p 5.6% 22
Cheerio Contest 1 J1 - Pronounceable Words Uncategorized 3 38.4% 200
Distinct Shapes Uncategorized 10 22.1% 37
NOI '22 Multi-Provincial Team Selection P1 - Preprocessor China NOI 10p 8.2% 12
NOI '22 Multi-Provincial Team Selection P2 - Tree China NOI 25p 10.5% 5
NOI '22 Multi-Provincial Team Selection P3 - Community China NOI 40p 2.9% 1
NOI '22 Multi-Provincial Team Selection P4 - Card China NOI 25p 12.9% 5
NOI '22 Multi-Provincial Team Selection P5 - Bracket China NOI 35p 6.8% 6
NOI '22 Multi-Provincial Team Selection P6 - MIS China NOI 40p 8.3% 2
Guess the Wordle Uncategorized 10 18.1% 5
COCI '17 Contest 1 #3 Lozinke Hard COCI 7 25.3% 57
Cheerio Contest 1 S2 - School Expansion Uncategorized 7p 32.0% 128
Cheerio Contest 1 J2 - Phys Ed Class Uncategorized 3 39.7% 136
Stacking Boxes Uncategorized 5 34.9% 81
Spy Tree Uncategorized 15p 21.9% 19
Age Demographic Uncategorized 5 18.9% 112
CCO '22 P2 - Rainy Markets CCO 17p 18.3% 105
CCO '22 P3 - Double Attendance CCO 25p 7.4% 28
NOIP '99 P2 - Palindrome Numbers China NOI 7p 14.1% 25
CCO '22 P4 - Bi-ing Lottery Treekets CCO 20p 19.0% 30
CCO '22 P5 - Phone Plans CCO 20p 12.8% 33
NOIP '99 Junior P1 - Cantor Table China NOI 5p 42.9% 15
NOIP '99 P3 - Traveller's Budget China NOI 12p 11.4% 13
NOIP '99 P1 - Missile Interception China NOI 12p 40.5% 41
NOIP '99 P4 - Stamp Face Value Design China NOI 12p 11.4% 10
Lemon Uncategorized 10 33.5% 15
A Math Contest P5 - Good Arrays Uncategorized 7p 27.9% 145
A Math Contest P11 - Weak Goldbach's Conjecture Uncategorized 15 23.9% 58
A Math Contest P2 - Subsequence Sum Uncategorized 5 29.2% 343
A Math Contest P10 - Tricky Multisets Uncategorized 12 26.2% 48
A Math Contest P7 - Factors Uncategorized 10 29.3% 132
A Math Contest P1 - Arrays Uncategorized 5 32.1% 249
A Math Contest P14 - Choosing Marbles Uncategorized 25p 21.9% 38
Adaptive Mechanized Calcium Chlorohypochlorite Uncategorized 25 15.2% 9
A Math Contest P4 - Circle Cutting Uncategorized 7 40.9% 105
A Math Contest P13 - Ways Uncategorized 17 18.9% 28
Pie Uncategorized 3 61.5% 168
A Math Contest P12 - Triangles Uncategorized 17 28.8% 20
A Math Contest P8 - Permutation Counting Uncategorized 12 36.6% 62
Fair Competition Olympiads School 5 32.7% 121
Lemon Game Olympiads School 7 28.6% 43
A Math Contest P16 - Morbius vs. Suibom Uncategorized 25 18.2% 20
APIO '22 P3 - Permutation APIO 20p 9.8% 12