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Problem Category Points AC % Users ▴
CCO '08 P3 - Mobile CCO 17p 31.3% 46
CCO '01 P6 - Election Night CCO 15 15.2% 47
CCO Preparation Test 4 P3 - Dynamic MST Mock CCO 25p 22.4% 49
Mock CCO '18 Contest 2 Problem 5 - Victor's Triangles Mock CCO 20p 33.2% 49
CCO '21 P3 - Through Another Maze Darkly CCO 25p 20.5% 49
CCO '18 P5 - Boring Lectures (Online Version) CCO 30p 7.4% 50
CCO '09 P2 - Dinner CCO 20p 9.8% 50
CCO '23 P4 - Flip it and Stick it CCO 17p 6.9% 51
CCO '10 P5 - Space Miner CCO 15 31.5% 52
Mock CCO '17 Problem 4 - Guards Mock CCO 15p 17.2% 52
CCO '21 P4 - Travelling Merchant CCO 25p 19.0% 53
CCO '97 P2 - Alien Invasion CCO 10 43.4% 54
CCO '00 P5 - Millikan's Oil Droplet Experiment CCO 7 22.3% 54
CCO '17 P2 - Cartesian Conquest CCO 20p 9.4% 55
Mock CCO '18 Contest 4 Problem 4 - Time Travel Mock CCO 15p 27.8% 56
CCO '00 P4 - Packet Routing CCO 7 59.5% 57
CCO Preparation Test 3 P3 - Arrow Mock CCO 30p 18.1% 58
CCO '18 P6 - Flop Sorting CCO 30p 17.5% 59
Mock CCO '17 Problem 1 - Fast Fuhrer Transform Mock CCO 10p 25.4% 60
CCO '20 P5 - Interval Collection CCO 25p 16.0% 60
CCO '16 P3 - Legends CCO 30p 9.8% 61
CCO '03 P1 - BFed CCO 10 25.4% 61
CCO '01 P3 - Partitions CCO 12 33.9% 63
CCO '21 P5 - Bread First Search CCO 20p 23.0% 63
CCO '19 P3 - Winter Driving CCO 30p 17.1% 65
CCO '23 P2 - Real Mountains CCO 17p 14.3% 65
CCO '04 P2 - Hockey Scores CCO 12 20.6% 66
CCO '12 P6 - The Winds Of War CCO 12p 40.1% 67
CCO '15 P3 - Solar Flight CCO 20p 12.8% 68
CCO '19 P4 - Card Scoring CCO 25p 15.3% 68
CCO '19 P6 - Bad Codes CCO 20p 25.4% 68
CCO '08 P2 - King & Weber CCO 10p 17.6% 69
CCO '15 P6 - Eggscavation CCO 30p 18.5% 70
CCO '16 P6 - Pirates CCO 25p 20.7% 70
Mock CCO '19 Contest 2 Problem 1 - A Dynamic Connectivity Problem Mock CCO 15p 31.3% 70
CCO '13 P5 - Transforming Comets CCO 15p 19.3% 74
CCO '18 P3 - Fun Palace CCO 30p 18.1% 76
CCO '09 P6 - A Weighty Problem CCO 12p 16.1% 76
CCO '11 P6 - Biggest (Zero Carbon) Footprint CCO 15p 12.6% 78
Mock CCO '18 Contest 1 Problem 6 - A Combining Problem Mock CCO 15p 17.6% 78
CCO '03 P6 - Cheap Gas CCO 20p 13.1% 79
CCO '07 P3 - Bowling for Numbers++ CCO 20p 10.5% 80
CCO '96 P4 - Where's Waldorf? CCO 7 47.2% 81
CCO '19 P2 - Sirtet CCO 20p 24.3% 81
CCO '96 P3 - Quadtrees CCO 15 48.4% 84
CCO '03 P5 - Longest Substring CCO 7p 15.8% 86
CCO '14 P5 - Early Exam Evacuation CCO 20p 23.3% 87
CCO '19 P1 - Human Error CCO 10p 31.1% 87
CCO '21 P2 - Weird Numeral System CCO 17p 12.1% 87
CCO '16 P2 - Splitting Hares CCO 15p 14.2% 89