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Problem Category Points AC % Users
Back to School '17: Hot and Cold Seasonal 20p 19.8% 19
Back to School '17: Big Integer Seasonal 35p 3.2% 20
Back To School '18: Harambe Seasonal 3 27.2% 175
Back To School '18: Letter Frequency Seasonal 5p 20.1% 145
Back To School '18: Making Friends Seasonal 7p 18.0% 88
Back To School '18: Beautiful Trees Seasonal 10p 14.4% 53
Back To School '18: An FFT Problem Seasonal 12p 29.9% 65
Back To School '18: The Golden Porcupine Seasonal 15p 19.4% 37
Back To School '18: Trucking Troubles II Seasonal 20p 36.6% 15
Back To School '18: Function Maximization Seasonal 25p 11.7% 17
CCC '00 J1 - Calendar CCC 3 9.3% 245
CCC '00 J2 - 9966 CCC 3 37.1% 428
CCC '00 J3 - Slot Machines CCC 5 26.5% 553
CCC '00 J4 - Babbling Brooks CCC 7 33.8% 358
CCC '00 J5 - Surfing CCC 7 15.4% 121
CCC '00 S4 - Golf CCC 10 24.8% 463
CCC '00 S5 - Sheep and Coyotes CCC 10 13.8% 149
CCC '01 J1 - Dressing Up CCC 3 49.5% 565
CCC '01 J2 - Mod Inverse CCC 3 40.7% 483
CCC '01 S1 - Keeping Score CCC 5 29.5% 352
CCC '01 S2 - Spirals CCC 5 31.3% 137
CCC '01 S2 - Spirals (Exact Version) CCC 7 7.7% 18
CCC '01 S3 - Strategic Bombing CCC 10 40.3% 314
CCC '01 S4 - Cookies CCC 7 19.1% 107
CCC '01 S5 - Post's Correspondence Problem CCC 10 22.4% 97
CCC '02 J1 - 0123456789 CCC 5 9.1% 179
CCC '02 J2 - AmeriCanadian CCC 3 21.8% 764
CCC '02 S1 - The Students' Council Breakfast CCC 5 39.3% 375
CCC '02 S2 - Fraction Action CCC 5 28.6% 813
CCC '02 S3 - Blindfold CCC 5 44.9% 159
CCC '02 S4 - Bridge Crossing CCC 10p 31.9% 187
CCC '02 S5 - Follow the Bouncing Ball CCC 10 13.8% 48
CCC '03 J1 - Trident CCC 3 49.8% 991
CCC '03 J2 - Picture Perfect CCC 3p 23.3% 428
CCC '03 S1 - Snakes and Ladders CCC 5 18.4% 869
CCC '03 S2 - Poetry CCC 5 16.3% 353
CCC '03 S3 - Floor Plan CCC 10 29.5% 490
CCC '03 S4 - Substrings CCC 15p 10.3% 173
CCC '03 S5 - Trucking Troubles CCC 12p 25.4% 244
CCC '04 J1 - Squares CCC 3 30.7% 1839
CCC '04 J2 - Terms of Office CCC 3 35.5% 888
CCC '04 J3 - Smile with Similes CCC 3 54.7% 987
CCC '04 J4 - Simple Encryption CCC 5 50.7% 384
CCC '04 J5 - Fractals CCC 10 33.5% 51
CCC '04 S1 - Fix CCC 5 32.7% 186
CCC '04 S2 - TopYodeller CCC 5 21.9% 105
CCC '04 S3 - Spreadsheet CCC 10 24.4% 104
CCC '04 S4 - Space Turtle CCC 10p 22.3% 40
CCC '04 S5 - Super Plumber CCC 10p 18.5% 56
CCC '05 J1 - The Cell Sell CCC 3 21.6% 1020