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Problem Category Points ▴ AC % Users
CCO '14 P5 - Early Exam Evacuation CCO 20p 23.3% 87
CCO Preparation Test 1 P1 - Double Cross Mock CCO 20p 12.1% 10
CCO Preparation Test 1 P2 - Escape Maze Mock CCO 20p 12.0% 39
CCO Preparation Test 2 P3 - Subsets Mock CCO 20p 16.7% 39
CCO '15 P3 - Solar Flight CCO 20p 12.8% 68
CCO '15 P5 - Timpanist CCO 20p 36.5% 102
CCOQR '16 - Through A Maze Darkly CCC 20p 18.3% 103
CCO Preparation Test 6 P1 - Bus Routes Mock CCO 20p 24.2% 6
CCO Preparation Test 6 P3 - HopScotch Mock CCO 20p 23.1% 140
CCO Preparation Test 7 P1 - Game of Stone Mock CCO 20p 6.4% 3
CCO Preparation Test 7 P2 - XOR Path Mock CCO 20p 13.5% 16
Mock CCO '17 Problem 3 - Connection Mock CCO 20p 12.5% 38
Mock CCO '17 Problem 6 - Dire Consequences Mock CCO 20 24.2% 25
CCO '17 P2 - Cartesian Conquest CCO 20p 9.4% 55
CCO '17 P4 - Rainfall Storage CCO 20p 36.2% 177
CCO '17 P5 - Professional Network CCO 20p 32.5% 166
Mock CCO '18 Contest 1 Problem 5 - A Counting Problem Mock CCO 20p 24.5% 9
Mock CCO '18 Contest 2 Problem 2 - Victor Rains Mock CCO 20p 27.7% 21
Mock CCO '18 Contest 2 Problem 3 - Victor Trains Mock CCO 20p 14.0% 7
Mock CCO '18 Contest 2 Problem 4 - Victor's Rectangles Mock CCO 20p 21.9% 22
Mock CCO '18 Contest 2 Problem 5 - Victor's Triangles Mock CCO 20p 33.2% 49
Mock CCO '18 Contest 2 Problem 6 - Victor's Cubes Mock CCO 20p 18.3% 9
Mock CCO '18 Contest 3 Problem 2 - Roger Delegates Work to Jessica Mock CCO 20p 28.9% 23
Mock CCO '18 Contest 3 Problem 3 - Roger Just Plays Some More Chess Mock CCO 20p 12.3% 33
Mock CCO '18 Contest 4 Problem 5 - Spawn More Overlords Mock CCO 20p 24.8% 35
CCO '18 P5 - Boring Lectures CCO 20p 19.2% 126
CCO '09 P1 - Invasion of the Boxes CCO 20p 12.8% 22
CCO '09 P2 - Dinner CCO 20p 9.8% 50
CCO '09 P4 - Bottle Caps CCO 20p 14.3% 38
CCO '19 P2 - Sirtet CCO 20p 24.3% 81
CCO '19 P6 - Bad Codes CCO 20p 25.6% 69
CCO '03 P3 - Cube CCO 20p 12.4% 14
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 20.5% 30
CCO '22 P5 - Phone Plans CCO 20p 12.4% 32
The Contest Contest 1 P5 - A Typical CCO Problem Uncategorized 20p 4.2% 24
CCO '13 P6 - Repetitivity CCO 25p 42.0% 197
CCO Preparation Test 2 P2 - Forest Area Mock CCO 25p 3.8% 5
CCO Preparation Test 3 P1 - Primitive Pythagorean Pairs Mock CCO 25p 13.7% 20
CCO Preparation Test 3 P2 - Packing Up Mock CCO 25p 14.9% 117
CCO Preparation Test 4 P3 - Dynamic MST Mock CCO 25p 22.1% 49
CCO '16 P6 - Pirates CCO 25p 20.7% 70
Mock CCO '18 Contest 1 Problem 4 - A Rectangle Problem Mock CCO 25p 17.4% 7
Mock CCO '19 Contest 1 Problem 5 - A Tree Problem Mock CCO 25p 14.3% 6
CCO '19 P4 - Card Scoring CCO 25p 15.3% 68
CCO '20 P4 - Travelling Salesperson CCO 25p 19.6% 92
CCO '20 P5 - Interval Collection CCO 25p 16.0% 60