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Problem Category Points ▾ AC % Users
CCO '05 P2 - The Great Spamway Strike CCO 20 40.8% 43
CCO '03 P6 - Cheap Gas CCO 20p 13.1% 79
CCO '21 P5 - Bread First Search CCO 20p 23.0% 63
CCO '05 P3 - That's News To Me CCO 20 0.0% 0
CCO '22 P4 - Bi-ing Lottery Treekets CCO 20p 20.6% 29
CCO '22 P5 - Phone Plans CCO 20p 12.7% 31
CCO '14 P3 - Werewolf CCO 17p 42.1% 194
CCO '09 P5 - Parade CCO 17p 17.3% 43
CCO '08 P3 - Mobile CCO 17p 31.3% 46
CCO '21 P1 - Swap Swap Sort CCO 17p 16.8% 152
CCO '21 P2 - Weird Numeral System CCO 17p 12.1% 87
CCO '22 P2 - Rainy Markets CCO 17p 18.7% 101
CCO '23 P2 - Real Mountains CCO 17p 14.3% 65
CCO '23 P4 - Flip it and Stick it CCO 17p 6.9% 51
CCO '10 P2 - Tree Pruning CCO 15 29.7% 188
CCO '10 P3 - Wowow CCO 15p 23.9% 282
CCO '10 P5 - Space Miner CCO 15 31.5% 52
CCO '11 P2 - Vampire Tunnels CCO 15p 19.0% 318
CCO '11 P6 - Biggest (Zero Carbon) Footprint CCO 15p 12.6% 78
CCO '12 P2 - The Hungary Games CCO 15 24.4% 478
CCO '13 P5 - Transforming Comets CCO 15p 19.3% 74
CCO '14 P2 - King Gruff CCO 15p 36.2% 253
CCO '15 P1 - Hungry Fox CCO 15p 21.4% 219
CCO '15 P2 - Artskjid CCO 15p 15.4% 503
CCO '16 P5 - Zombie Apocalypse CCO 15p 19.1% 141
CCO '16 P2 - Splitting Hares CCO 15p 14.2% 89
CCO '18 P4 - Gradient Descent CCO 15p 14.5% 250
CCO '96 P3 - Quadtrees CCO 15 48.4% 84
CCO '96 P6 - Hoppers CCO 15 15.5% 29
CCO '99 P5 - Sum Of Products CCO 15 4.3% 1
CCO '99 P6 - Fast Food CCO 15 34.4% 10
CCO '00 P3 - The Game Of 31 CCO 15 54.5% 11
CCO '19 P5 - Marshmallow Molecules CCO 15p 26.5% 128
CCO '01 P6 - Election Night CCO 15 15.2% 47
CCO '20 P2 - Exercise Deadlines CCO 15p 29.7% 290
CCO '04 P3 - S and K CCO 15p 4.5% 6
CCO '04 P6 - Orko CCO 15 31.6% 42
CCO '03 P2 - Concentration Cards CCO 15 36.1% 31
CCO '12 P6 - The Winds Of War CCO 12p 40.1% 67
CCO '13 P2 - Tourney CCO 12p 42.3% 378
CCO '13 P3 - LHC CCO 12p 23.3% 404
CCO '18 P2 - Wrong Answer CCO 12p 15.4% 115
CCO '98 P3 - Bus Schedule CCO 12 12.5% 2
CCO '98 P6 - Derek's Dilemma CCO 12 46.7% 4
CCO '00 P2 - Ransom Note CCO 12p 7.7% 6
CCO '09 P6 - A Weighty Problem CCO 12p 16.1% 76
CCO '00 P6 - Extension Cords CCO 12 18.0% 7
CCO '01 P2 - Coke or Chocolate Milk CCO 12 17.1% 11
CCO '01 P3 - Partitions CCO 12 33.9% 63
CCO '02 P1 - Spam CCO 12 49.1% 22