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Problem Category Points AC % Users
CCO '23 P5 - Travelling Trader CCO 30p 7.1% 21
CCO '23 P6 - Triangle Collection CCO 25p 17.9% 26
CCO '24 P1 - Treasure Hunt CCO 10p 21.7% 140
CCO '24 P2 - Pizza Party CCO 10p 33.0% 51
CCO '24 P3 - Summer Driving CCO 25p 10.1% 13
CCO '24 P4 - Infiltration CCO 20p 9.7% 22
CCO '24 P4 - Infiltration (Hard) CCO 30p 3.6% 2
CCO '24 P5 - Heavy Light Decomposition CCO 20p 14.1% 29
CCO '24 P6 - Telephone Plans CCO 30p 11.3% 18
CCO '25 P1 - Asteroid Mining CCO 15p 17.2% 70
CCO '25 P2 - Tree Decorations CCO 17p 9.9% 42
CCO '25 P3 - Balanced Integer CCO 25p 8.7% 8
CCO '25 P4 - Restaurant Recommendation Rescue CCO 17p 15.9% 28
CCO '25 P5 - Patrol Robot CCO 25p 11.5% 11
CCO '25 P6 - Shopping Deals CCO 35p 8.2% 4
CCO '96 P1 - Train Swapping CCO 5p 27.8% 229
CCO '96 P2 - SafeBreaker CCO 10p 36.2% 111
CCO '96 P3 - Quadtrees CCO 15p 50.0% 90
CCO '96 P4 - Where's Waldorf? CCO 7p 47.6% 86
CCO '96 P5 - All Roads Lead Where? CCO 7p 62.4% 285
CCO '96 P6 - Hoppers CCO 15p 15.5% 32
CCO '97 P1 - Palindromes CCO 10p 11.5% 33
CCO '97 P2 - Alien Invasion CCO 10p 45.9% 90
CCO '97 P3 - Porous Stone CCO 10p 16.7% 5
CCO '97 P4 - High Tide CCO 10p 24.0% 12
CCO '97 P5 - Space Aliens CCO 10p 23.1% 5
CCO '97 P6 - Aligning DNA CCO 7p 14.3% 19
CCO '98 P1 - Fibonacci Numbers CCO 7p 25.0% 173
CCO '98 P2 - Message Deciphering CCO 7p 58.3% 32
CCO '98 P3 - Bus Schedule CCO 12p 21.1% 4
CCO '98 P4 - Scoring Curling CCO 7p 26.7% 10
CCO '98 P5 - Text Segmentation CCO 10p 19.9% 31
CCO '98 P6 - Derek's Dilemma CCO 12p 37.5% 11
CCO '99 P1 - You Can't Get There From Here CCO 7p 27.8% 18
CCO '99 P2 - Common Words CCO 10p 12.7% 373
CCO '99 P3 - Manelzuma's Revenge CCO 10p 24.0% 4
CCO '99 P4 - Maple Roundup CCO 10p 21.1% 30
CCO '99 P5 - Sum Of Products CCO 15p 18.4% 3
CCO '99 P6 - Fast Food CCO 15p 24.8% 16
CCO Preparation Test 1 P1 - Double Cross Mock CCO 20p 11.7% 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 34.4% 174
CCO Preparation Test 2 P1 - Concatenation Mock CCO 17p 13.7% 37
CCO Preparation Test 2 P2 - Forest Area Mock CCO 25p 7.1% 12
CCO Preparation Test 2 P3 - Subsets Mock CCO 20p 16.9% 46
CCO Preparation Test 3 P1 - Primitive Pythagorean Pairs Mock CCO 25p 13.4% 20
CCO Preparation Test 3 P2 - Packing Up Mock CCO 25p 14.8% 128
CCO Preparation Test 3 P3 - Arrow Mock CCO 30p 17.7% 59
CCO Preparation Test 4 P3 - Dynamic MST Mock CCO 25p 23.9% 79
CCO Preparation Test 5 P1 - City Game Mock CCO 15 26.5% 226