Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % Users
Mock CCC '23 2 S2 - Keenan Hates Triangles Mock CCC 7p 3.0% 44
Mock CCC '23 2 S3 - Richard The Penguin Mock CCC 10p 4.0% 15
Mock CCC '23 2 S4 - Roger Says Yabe Mock CCC 15p 18.8% 8
Mock CCC '23 2 S5 - The Obligatory Data Structures Problem Mock CCC 25p 9.9% 7
Mock CCC '18 Contest 1 J1 - A String Problem Mock CCC 3p 46.1% 582
Mock CCC '18 Contest 1 J2 - A Substring Problem Mock CCC 3p 27.9% 382
Mock CCC '18 Contest 1 J3/S1 - A Math Problem Mock CCC 5p 24.8% 424
Mock CCC '18 Contest 1 J4/S2 - A Square Problem Mock CCC 5 35.3% 506
Mock CCC '18 Contest 1 J5/S3 - A Simulation Problem Mock CCC 7p 21.8% 131
Mock CCC '18 Contest 1 S4 - A Graph Problem Mock CCC 12p 20.0% 110
Mock CCC '18 Contest 1 S5 - A Palindrome Problem Mock CCC 15p 10.2% 19
Mock CCC '18 Contest 2 J1 - An Arithmetic Problem Mock CCC 3p 48.5% 507
Mock CCC '18 Contest 2 J2 - A Software Engineering Task Mock CCC 3p 36.6% 189
Mock CCC '18 Contest 2 J3/S1 - An Array Problem Mock CCC 7p 16.2% 394
Mock CCC '18 Contest 2 J4/S2 - A Geometry Problem Mock CCC 7p 17.5% 133
Mock CCC '18 Contest 2 J5/S3 - A Coloring Problem Mock CCC 10p 19.0% 65
Mock CCC '18 Contest 2 S4 - A Tree Problem Mock CCC 12p 18.8% 79
Mock CCC '18 Contest 2 S5 - A Link/Cut Tree Problem Mock CCC 15p 22.9% 100
Mock CCC '18 Contest 3 J1 - A Sum Problem Mock CCC 3p 61.7% 745
Mock CCC '18 Contest 3 J2 - A Palindrome Problem Mock CCC 3p 24.5% 295
Mock CCC '18 Contest 3 J3/S1 - A String Problem Mock CCC 5p 35.8% 431
Mock CCC '18 Contest 3 J4/S2 - A Median Problem Mock CCC 5p 36.3% 520
Mock CCC '18 Contest 3 J5/S3 - A Cookie-Cutter Problem Mock CCC 10p 10.4% 64
Mock CCC '18 Contest 3 S4 - A Graph Problem Mock CCC 10 25.8% 219
Mock CCC '18 Contest 3 S5 - A Rage Tree Problem Mock CCC 20p 12.0% 47
Mock CCC '18 Contest 5 J1 - Looking for the CCC Mock CCC 3p 45.8% 628
Mock CCC '18 Contest 5 J2 - Smallest Mode Mock CCC 3p 27.9% 273
Mock CCC '18 Contest 5 J3/S1 - Median Triples Mock CCC 5p 29.9% 251
Mock CCC '18 Contest 5 J4/S2 - Reverse Sort Mock CCC 5p 44.1% 287
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity Mock CCC 7p 42.9% 588
Mock CCC '18 Contest 5 S4 - Sparse Binary String Counting Mock CCC 10p 18.4% 98
Mock CCC '18 Contest 5 S5 - California Boggle Mock CCC 20p 11.1% 35
Mock CCC '19 Contest 1 J1 - Pusheen's Report Card Mock CCC 3p 36.6% 1095
Mock CCC '19 Contest 1 J2 - Pusheen OCR Mock CCC 3p 55.0% 813
Mock CCC '19 Contest 1 J3 - Pusheen Eats Tuna Sashimi and Tuna Nigiri Mock CCC 3p 19.5% 397
Mock CCC '19 Contest 1 J4 - Pusheen Plays Neko Atsume Mock CCC 3p 19.4% 336
Mock CCC '19 Contest 1 J5 - Pusheen Designs a Sushi Boat Mock CCC 7p 17.0% 238
Mock CCC '19 Contest 1 S1 - Pusheen's Report Card Mock CCC 3p 42.9% 722
Mock CCC '19 Contest 1 S2 - Pusheen's Puzzle Present Mock CCC 5p 27.0% 380
Mock CCC '19 Contest 1 S3 - Pusheen Eats Tuna Sashimi and Tuna Nigiri Mock CCC 12p 5.9% 58
Mock CCC '19 Contest 1 S4 - Pusheen Plays Neko Atsume Mock CCC 12 17.6% 108
Mock CCC '19 Contest 1 S5 - Pusheen Eats Even More Tuna Sashimi and Tuna Nigiri Mock CCC 20 2.3% 10
Mock CCC '19 Contest 2 J1 - Tudor Drinks Some Tea Mock CCC 3p 52.1% 830
Mock CCC '19 Contest 2 J2 - Tudor Drinks Some More Tea Mock CCC 3p 28.2% 405
Mock CCC '19 Contest 2 J3 - Tudor Buys Some Tea Mock CCC 3p 17.4% 333
Mock CCC '19 Contest 2 J4 - Tudor Buys Some Cheesecake Mock CCC 3p 20.8% 301
Mock CCC '19 Contest 2 J5 - Tudor Drinks Even More Tea Mock CCC 10p 8.1% 41
Mock CCC '19 Contest 2 S1 - Tudor's Double Doors Mock CCC 3p 11.2% 241
Mock CCC '19 Contest 2 S2 - Tudor Puts A Goat On A Rope Mock CCC 3p 29.4% 222
Mock CCC '19 Contest 2 S3 - Tudor Tallies Triangular Totals Mock CCC 10p 5.7% 68