Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points ▾ AC % Users
Mock CCC '15 S5 - Kongou Mock CCC 40p 3.9% 13
Mock CCC '22 1 S5 - Berkeley Math Tournament Awards Ceremony Mock CCC 35p 5.5% 7
Mock CCC '22 2 S5 - Kaguya Wants to go Window Shopping with Kei Shirogane Mock CCC 30p 5.5% 5
TLE '16 Contest 6 (Mock CCC) S4 - Bubble Sort TLE 25p 6.4% 11
Mock CCC '19 Contest 2 S4 - Tudor Walks Among the Goats Mock CCC 25p 6.8% 8
CCCHK '15 S5 - Can I pass the courses? CCC 25p 5.0% 6
Mock CCC '21 S5 - Clique and Independent Set Mock CCC 25p 18.3% 11
Riolku's Mock CCC S5 - Keen Keener Multiset Mock CCC 25p 6.6% 13
Mock CCC '23 1 S5 - The Obligatory Data Structures Problem Mock CCC 25p 14.0% 10
Mock CCC '23 2 S5 - The Obligatory Data Structures Problem Mock CCC 25p 11.5% 4
CCC '14 S5 - Lazy Fox CCC 20p 17.8% 454
CCC '10 S5 - Nutrient Tree CCC 20p 19.6% 267
CCC '16 S5 - Circle of Life CCC 20p 22.6% 577
TLE '16 Contest 6 (Mock CCC) S5 - Toll Routes TLE 20p 3.9% 26
CCC '17 S5 - RMT CCC 20p 19.2% 243
Mock CCC '18 Contest 3 S5 - A Rage Tree Problem Mock CCC 20p 11.2% 46
Mock CCC '18 Contest 5 S5 - California Boggle Mock CCC 20p 10.6% 35
CCC '18 S5 - Maximum Strategic Savings CCC 20p 26.7% 406
Mock CCC '19 Contest 1 S5 - Pusheen Eats Even More Tuna Sashimi and Tuna Nigiri Mock CCC 20 2.3% 9
CCC '19 S5 - Triangle: The Data Structure CCC 20p 17.8% 357
CCC '19 S4 - Tourism CCC 20p 7.7% 248
CCC '19 J5 - Rule of Three CCC 20p 0.7% 7
Mock CCC '20 S4 - Valentine's Day Shopping Mock CCC 20p 7.9% 15
Mock CCC '20 Contest 2 S5 - Sticks Mock CCC 20p 2.3% 4
CCC '02 S4 - Bridge Crossing (Hard) CCC 20 8.6% 32
CCC '00 S5 - Sheep and Coyotes (Hard) CCC 20 5.6% 21
Mock CCC '22 1 S4 - Berkeley Math Tournament Statistics Mock CCC 20p 8.7% 31
CCC '23 S5 - The Filter CCC 20p 16.3% 86
Mock CCC '24 Contest 1 S5 - Mock CCC 2025 Mock CCC 20p 14.2% 18
CCC '24 S5 - Chocolate Bar Partition CCC 20p 10.4% 21
CCC '15 S5 - Greedy For Pies CCC 17p 23.4% 553
CCC '17 S4 - Minimum Cost Flow CCC 17p 14.1% 771
CCC '20 S5 - Josh's Double Bacon Deluxe CCC 17p 29.6% 257
CCC '22 S5 - Good Influencers CCC 17p 32.6% 185
CCC '06 S5 - Origin of Life CCC 15 18.8% 117
CCC '03 S4 - Substrings CCC 15p 7.7% 370
CCC '14 S4 - Tinted Glass Window CCC 15p 29.2% 672
CCC '13 S5 - Factor Solitaire CCC 15p 42.8% 732
CCC '12 S4 - A Coin Game CCC 15 26.9% 457
CCC '11 S4 - Blood Distribution CCC 15p 7.7% 155
CCC '10 S3 - Firehose CCC 15p 18.2% 646
CCC '10 S4 - Animal Farm CCC 15p 25.5% 528
Mock CCC '15 S4 - Ice Pillars Mock CCC 15p 29.0% 106
CCC '15 S4 - Convex Hull CCC 15p 27.3% 1158
CCC '16 S4 - Combining Riceballs CCC 15p 28.7% 932
CCCJQR P5 Seasonal 15p 21.0% 22
CCCHK '15 J5 - No friends in the same group. CCC 15p 9.8% 33
CCC '02 S3 - Blindfold CCC 15 6.1% 150
TLE '16 Contest 6 (Mock CCC) S3 - Hyper Fax TLE 15p 17.1% 152
Mock CCC '18 Contest 1 S5 - A Palindrome Problem Mock CCC 15p 8.5% 18