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Problem Category Points AC % Users
CCO '03 P4 - Constrained Permutations CCO 5p 50.7% 172
CCO '03 P5 - Longest Substring CCO 7p 16.1% 115
CCO '03 P6 - Cheap Gas CCO 20p 13.0% 83
CCO '04 P1 - Scribble CCO 5p 42.1% 135
CCO '04 P2 - Hockey Scores CCO 12p 21.3% 72
CCO '04 P3 - S and K CCO 15p 5.1% 7
CCO '04 P4 - Return of Space Turtle CCO 12p 14.1% 46
CCO '04 P5 - Jengaism CCO 7p 31.3% 117
CCO '04 P6 - Orko CCO 15p 28.8% 45
CCO '05 P1 - Number Matrix CCO 10p 24.4% 169
CCO '05 P2 - The Great Spamway Strike CCO 20p 38.9% 46
CCO '05 P3 - That's News To Me CCO 20p 20.0% 1
CCO '05 P4 - Primed Sequences CCO 12p 13.1% 111
CCO '05 P5 - Segments CCO 10p 44.6% 309
CCO '05 P6 - Windows CCO 30p 14.7% 29
CCO '06 P1 - CN Tower CCO 5p 26.1% 150
CCO '06 P2 - R & J CCO 10p 20.3% 36
CCO '06 P3 - Codec CCO 25p 1.7% 1
CCO '06 P4 - CN Tower 2 CCO 30p 5.1% 13
CCO '06 P5 - Domino CCO 30p 5.8% 5
CCO '06 P6 - Paint by Numbers CCO 40p 4.0% 5
CCO '07 P1 - Cows CCO 10p 31.9% 191
CCO '07 P2 - Snowflakes CCO 10p 15.3% 1379
CCO '07 P3 - Bowling for Numbers++ CCO 20p 11.3% 97
CCO '07 P4 - Gerrymandering CCO 20p 1.8% 4
CCO '07 P5 - Particle Catcher CCO 30p 18.5% 12
CCO '07 P6 - Road Construction CCO 20p 30.0% 198
CCO '08 P1 - Moving Day CCO 7p 28.4% 113
CCO '08 P2 - King & Weber CCO 10p 17.6% 90
CCO '08 P3 - Mobile CCO 17p 40.3% 56
CCO '08 P4 - Herding CCO 10p 31.6% 233
CCO '08 P5 - Candy CCO 7p 17.1% 267
CCO '08 P6 - Landing CCO 45 18.4% 52
CCO '09 P1 - Invasion of the Boxes CCO 20p 13.1% 23
CCO '09 P2 - Dinner CCO 20p 10.1% 54
CCO '09 P3 - Beware the Geoducks CCO 10p 9.7% 34
CCO '09 P4 - Bottle Caps CCO 20p 16.5% 53
CCO '09 P5 - Parade CCO 17p 17.7% 46
CCO '09 P6 - A Weighty Problem CCO 12p 15.8% 98
CCO '10 P1 - Barking Dogs! CCO 10p 33.6% 245
CCO '10 P2 - Tree Pruning CCO 15p 31.3% 211
CCO '10 P3 - Wowow CCO 15p 23.9% 321
CCO '10 P4 - Computer Purchase Return CCO 10p 40.0% 439
CCO '10 P5 - Space Miner CCO 15p 32.0% 54
CCO '10 P6 - Shuffle CCO 10p 35.4% 163
CCO '11 P1 - Putnam CCO 7p 27.9% 125
CCO '11 P2 - Vampire Tunnels CCO 15p 19.6% 379
CCO '11 P3 - Spies Like Us CCO 10p 23.2% 215
CCO '11 P4 - Reorganization CCO 7p 35.9% 246
CCO '11 P5 - Fixing Disks CCO 40p 8.5% 7