Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % Users
Mock CCC '24 Contest 1 J5 - Mathland Mock CCC 10p 8.1% 34
Mock CCC '24 Contest 1 J4/S1 - Magical Magnetic Marbles Mock CCC 5p 11.6% 255
Mock CCC '24 Contest 1 S2 - Owen the Toucan Mock CCC 7p 33.1% 188
Mock CCC '24 Contest 1 S3 - Optimal Split Point Mock CCC 10p 3.0% 24
Mock CCC '24 Contest 1 S4 - Tommy's Lemonade Stand Mock CCC 12p 22.0% 29
Mock CCC '24 Contest 1 S5 - Mock CCC 2025 Mock CCC 20p 14.2% 18
Mock CCC '14 J1 - Love Overdose Mock CCC 3 21.9% 485
Mock CCC '14 J2 - Rope Unfolding Mock CCC 3 44.8% 283
Mock CCC '14 J3 - Clock Hands Mock CCC 5 17.2% 107
Mock CCC '14 J4 - Selecting Shifts Mock CCC 7p 11.5% 52
Mock CCC '14 J5 - Spacetime Surfer Mock CCC 10 30.0% 83
Mock CCC '14 S1 - Reverse Find Mock CCC 5 28.3% 226
Mock CCC '14 S2 - Sleep Cycle Mock CCC 7p 15.9% 103
Mock CCC '14 S3 - Spreadsheet Sorting Mock CCC 7 49.0% 425
Mock CCC '14 S4 - Roadtrip Tracking Mock CCC 15p 9.0% 57
Mock CCC '14 S5 - Elimination Game Mock CCC 15p 21.8% 56
Mock CCC '15 J1 - 416 Mock CCC 3p 24.1% 761
Mock CCC '15 J2 - Lowest Exam Mark Mock CCC 5p 11.5% 418
Mock CCC '15 J3 - Problem-setting Pandemonium Mock CCC 3p 59.7% 533
Mock CCC '15 J4 - Vox in Box Mock CCC 7p 18.3% 79
Mock CCC '15 J5 - Royal Guard Mock CCC 10p 16.5% 160
Mock CCC '15 S1 - Dupvoting Mock CCC 5p 18.3% 151
Mock CCC '15 S2 - Problem-setting Pandemonium Mock CCC 5p 34.7% 256
Mock CCC '15 S3 - The Tachyon Trap Mock CCC 12p 18.4% 65
Mock CCC '15 S4 - Ice Pillars Mock CCC 15p 29.0% 106
Mock CCC '15 S5 - Kongou Mock CCC 40p 3.9% 13
Mock CCC '22 2 S1 - Kaguya Wants to Let Ishigami Pass Mock CCC 5p 25.5% 177
Mock CCC '22 2 S2 - Kaguya Wants to Grow the Student Council Mock CCC 10p 35.2% 105
Mock CCC '22 2 S3 - Kaguya Wants to Analyze the Academy Anthem Mock CCC 12p 7.9% 40
Mock CCC '22 2 S4 - Kaguya Wants to Build a Great Wall Mock CCC 15p 7.5% 8
Mock CCC '22 2 S5 - Kaguya Wants to go Window Shopping with Kei Shirogane Mock CCC 30p 5.5% 5
Mock CCC '23 1 S1 - Composite Fibonacci Numbers Mock CCC 5p 13.0% 148
Mock CCC '23 1 S2 - Keenan Hates Triangles Mock CCC 5p 22.9% 97
Mock CCC '23 1 S3 - Richard The Penguin Mock CCC 10p 5.9% 27
Mock CCC '23 1 S4 - Roger Says Yabe Mock CCC 15p 7.2% 19
Mock CCC '23 1 S5 - The Obligatory Data Structures Problem Mock CCC 25p 14.0% 10
Mock CCC '23 2 S1 - Composite Fibonacci Numbers Mock CCC 3p 23.2% 282
Mock CCC '23 2 S2 - Keenan Hates Triangles Mock CCC 7p 2.3% 38
Mock CCC '23 2 S3 - Richard The Penguin Mock CCC 10p 3.9% 13
Mock CCC '23 2 S4 - Roger Says Yabe Mock CCC 15p 19.0% 7
Mock CCC '23 2 S5 - The Obligatory Data Structures Problem Mock CCC 25p 11.5% 4
Mock CCC '18 Contest 1 J1 - A String Problem Mock CCC 3p 45.0% 497
Mock CCC '18 Contest 1 J2 - A Substring Problem Mock CCC 3p 26.9% 334
Mock CCC '18 Contest 1 J3/S1 - A Math Problem Mock CCC 5p 23.1% 345
Mock CCC '18 Contest 1 J4/S2 - A Square Problem Mock CCC 5 33.7% 424
Mock CCC '18 Contest 1 J5/S3 - A Simulation Problem Mock CCC 7p 21.6% 122
Mock CCC '18 Contest 1 S4 - A Graph Problem Mock CCC 12p 19.9% 97
Mock CCC '18 Contest 1 S5 - A Palindrome Problem Mock CCC 15p 8.5% 18
Mock CCC '18 Contest 2 J1 - An Arithmetic Problem Mock CCC 3p 50.9% 417
Mock CCC '18 Contest 2 J2 - A Software Engineering Task Mock CCC 3p 35.3% 151