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Problem Category Points AC % Users
CCO '24 P5 - Heavy Light Decomposition CCO 20p 15.7% 18
CCO '24 P6 - Telephone Plans CCO 30p 15.3% 11
CCO '96 P1 - Train Swapping CCO 5 27.1% 215
CCO '96 P2 - SafeBreaker CCO 10 36.0% 91
CCO '96 P3 - Quadtrees CCO 15 49.3% 87
CCO '96 P4 - Where's Waldorf? CCO 7 47.6% 84
CCO '96 P5 - All Roads Lead Where? CCO 7 62.1% 279
CCO '96 P6 - Hoppers CCO 15 15.4% 30
CCO '97 P1 - Palindromes CCO 10 11.9% 31
CCO '97 P2 - Alien Invasion CCO 10 45.4% 62
CCO '97 P3 - Porous Stone CCO 10 18.6% 3
CCO '97 P4 - High Tide CCO 10 24.0% 12
CCO '97 P5 - Space Aliens CCO 10 23.7% 5
CCO '97 P6 - Aligning DNA CCO 7 14.2% 16
CCO '98 P1 - Fibonacci Numbers CCO 7 25.8% 163
CCO '98 P2 - Message Deciphering CCO 7 57.4% 29
CCO '98 P3 - Bus Schedule CCO 12 16.7% 3
CCO '98 P4 - Scoring Curling CCO 7p 25.7% 9
CCO '98 P5 - Text Segmentation CCO 10 16.9% 19
CCO '98 P6 - Derek's Dilemma CCO 12 50.0% 5
CCO '99 P1 - You Can't Get There From Here CCO 7 27.1% 17
CCO '99 P2 - Common Words CCO 10 12.1% 335
CCO '99 P3 - Manelzuma's Revenge CCO 10 33.3% 3
CCO '99 P4 - Maple Roundup CCO 10 20.6% 29
CCO '99 P5 - Sum Of Products CCO 15 13.9% 2
CCO '99 P6 - Fast Food CCO 15 25.8% 16
CCO Preparation Test 1 P1 - Double Cross Mock CCO 20p 12.1% 10
CCO Preparation Test 1 P2 - Escape Maze Mock CCO 20p 11.8% 40
CCO Preparation Test 1 P3 - K-th Rank Student Mock CCO 17p 34.6% 161
CCO Preparation Test 2 P1 - Concatenation Mock CCO 17p 13.1% 32
CCO Preparation Test 2 P2 - Forest Area Mock CCO 25p 3.8% 5
CCO Preparation Test 2 P3 - Subsets Mock CCO 20p 17.1% 42
CCO Preparation Test 3 P1 - Primitive Pythagorean Pairs Mock CCO 25p 13.5% 20
CCO Preparation Test 3 P2 - Packing Up Mock CCO 25p 14.8% 122
CCO Preparation Test 3 P3 - Arrow Mock CCO 30p 17.7% 58
CCO Preparation Test 4 P3 - Dynamic MST Mock CCO 25p 23.2% 61
CCO Preparation Test 5 P1 - City Game Mock CCO 15 26.4% 214
CCO Preparation Test 5 P2 - Corporative Network Mock CCO 15 8.0% 15
CCO Preparation Test 5 P3 - Minimum Cycle Mock CCO 15p 9.6% 9
CCO Preparation Test 5 P4 - Toys Mock CCO 15p 3.1% 2
CCO Preparation Test 6 P1 - Bus Routes Mock CCO 20p 24.2% 6
CCO Preparation Test 6 P2 - An Easy Problem Mock CCO 12p 32.6% 206
CCO Preparation Test 6 P3 - HopScotch Mock CCO 20p 23.1% 143
CCO Preparation Test 7 P1 - Game of Stone Mock CCO 20p 6.0% 3
CCO Preparation Test 7 P2 - XOR Path Mock CCO 20p 12.3% 16
CCOQR '16 - Stupendous Bowties CCC 10p 31.9% 253
CCOQR '16 - Through A Maze Darkly CCC 20p 18.4% 104
CCOQR '16 - Data Structure CCC 15p 22.1% 182
DMPG '16 B3 - CCO DMOPC 5 41.8% 102
Mock CCO '17 Problem 1 - Fast Fuhrer Transform Mock CCO 10p 25.5% 62