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Problem Category Points AC % Users
CCO '96 P5 - All Roads Lead Where? CCO 7 62.6% 271
CCO '96 P6 - Hoppers CCO 15 15.5% 29
CCO '97 P1 - Palindromes CCO 10 11.0% 21
CCO '97 P2 - Alien Invasion CCO 10 43.4% 54
CCO '97 P3 - Porous Stone CCO 10 33.3% 2
CCO '97 P4 - High Tide CCO 10 11.8% 3
CCO '97 P5 - Space Aliens CCO 10 46.7% 3
CCO '97 P6 - Aligning DNA CCO 7 19.1% 11
CCO '98 P1 - Fibonacci Numbers CCO 7 26.2% 158
CCO '98 P2 - Message Deciphering CCO 7 51.9% 20
CCO '98 P3 - Bus Schedule CCO 12 12.5% 2
CCO '98 P4 - Scoring Curling CCO 7p 25.0% 8
CCO '98 P5 - Text Segmentation CCO 10 23.7% 18
CCO '98 P6 - Derek's Dilemma CCO 12 46.7% 4
CCO '99 P1 - You Can't Get There From Here CCO 7 27.5% 16
CCO '99 P2 - Common Words CCO 10 12.3% 314
CCO '99 P3 - Manelzuma's Revenge CCO 10 28.6% 2
CCO '99 P4 - Maple Roundup CCO 10 21.8% 19
CCO '99 P5 - Sum Of Products CCO 15 4.3% 1
CCO '99 P6 - Fast Food CCO 15 34.4% 10
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 1 P3 - K-th Rank Student Mock CCO 17p 35.2% 151
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 16.7% 39
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 3 P3 - Arrow Mock CCO 30p 18.1% 58
CCO Preparation Test 4 P3 - Dynamic MST Mock CCO 25p 22.4% 49
CCO Preparation Test 5 P1 - City Game Mock CCO 15 26.4% 202
CCO Preparation Test 5 P2 - Corporative Network Mock CCO 15 7.3% 13
CCO Preparation Test 5 P3 - Minimum Cycle Mock CCO 15p 9.4% 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 32.5% 204
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
CCOQR '16 - Stupendous Bowties CCC 10p 31.8% 242
CCOQR '16 - Through A Maze Darkly CCC 20p 18.3% 103
CCOQR '16 - Data Structure CCC 15p 22.0% 176
CEOI '09 P2 - Harbingers CEOI 25p 12.9% 22
CEOI '14 P2 - Fangorn CEOI 20p 28.3% 18
CEOI '16 P2 - Kangaroo CEOI 20p 43.3% 64
CEOI '16 P4 - Match CEOI 15p 19.9% 22
CEOI '16 P5 - Popeala CEOI 25p 18.6% 11
CEOI '17 P1 - One-Way Streets CEOI 25p 23.5% 51
CEOI '17 P2 - Sure Bet CEOI 10p 35.8% 81
CEOI '17 P3 - Mousetrap CEOI 25p 14.4% 16