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Problem Category Points AC % Users ▾
CCO '07 P2 - Snowflakes CCO 10 14.4% 963
CCO '14 P1 - Troyangles CCO 10p 37.8% 619
CCO '18 P1 - Geese vs. Hawks CCO 10p 37.9% 569
CCO '15 P2 - Artskjid CCO 15p 15.4% 503
CCO '12 P2 - The Hungary Games CCO 15 24.4% 478
CCO '17 P1 - Vera and Trail Building CCO 7p 38.5% 412
CCO '13 P3 - LHC CCO 12p 23.3% 402
CCO '14 P4 - Where's That Fuel? CCO 7p 34.3% 385
CCO '13 P2 - Tourney CCO 12p 42.3% 378
CCO '10 P4 - Computer Purchase Return CCO 10 39.0% 363
CCO '11 P2 - Vampire Tunnels CCO 15p 19.0% 318
Mock CCO '18 Contest 3 Problem 4 - Roger Solves A Classic Rage Tree Problem Mock CCO 10p 50.3% 316
CCO '99 P2 - Common Words CCO 10 12.3% 314
CCO '20 P2 - Exercise Deadlines CCO 15p 29.7% 290
CCO '05 P5 - Segments CCO 10p 44.3% 284
CCO '10 P3 - Wowow CCO 15p 23.9% 282
Mock CCO '18 Contest 4 Problem 3 - Counterattack Mock CCO 15p 23.6% 280
CCO '96 P5 - All Roads Lead Where? CCO 7 62.6% 271
CCO '00 P1 - Subsets CCO 10 35.0% 269
CCO '16 P4 - O Canada CCO 10p 36.4% 263
CCO '14 P2 - King Gruff CCO 15p 36.2% 253
CCO '18 P4 - Gradient Descent CCO 15p 14.5% 249
CCOQR '16 - Stupendous Bowties CCC 10p 31.8% 242
CCO '08 P5 - Candy CCO 7p 18.3% 235
CCO '10 P1 - Barking Dogs! CCO 10 33.9% 232
CCO '12 P1 - Choose Your Own Arithmetic CCO 7 22.8% 223
CCO '01 P1 - The Monkey Dance CCO 10 41.5% 222
CCO '08 P4 - Herding CCO 10p 31.5% 221
CCO '15 P1 - Hungry Fox CCO 15p 21.4% 219
CCO '11 P4 - Reorganization CCO 7p 35.1% 215
CCO '20 P1 - A Game with Grundy CCO 10p 20.2% 213
CCO '96 P1 - Train Swapping CCO 5 26.9% 212
CCO '13 P1 - All Your Base Belong to Palindromes CCO 10p 18.6% 208
CCO '15 P4 - Cars on Ice CCO 10p 19.0% 206
CCO Preparation Test 6 P2 - An Easy Problem Mock CCO 12p 32.5% 204
CCO '11 P3 - Spies Like Us CCO 10p 22.8% 203
CCO Preparation Test 5 P1 - City Game Mock CCO 15 26.4% 202
CCO '13 P6 - Repetitivity CCO 25p 42.0% 197
CCO '14 P3 - Werewolf CCO 17p 42.1% 194
CCO '10 P2 - Tree Pruning CCO 15 29.7% 188
CCO '07 P1 - Cows CCO 10 32.3% 181
CCO '07 P6 - Road Construction CCO 20p 30.3% 180
CCO '17 P4 - Rainfall Storage CCO 20p 36.2% 177
CCOQR '16 - Data Structure CCC 15p 22.0% 176
CCO '16 P1 - Field Trip CCO 10p 21.8% 171
CCO '12 P5 - Sample Size CCO 7 24.0% 171
Mock CCO '17 Problem 2 - Penetrating Power Mock CCO 17p 25.6% 170
CCO '17 P5 - Professional Network CCO 20p 32.5% 166
CCO '23 P1 - Binaria CCO 12p 24.0% 164
CCO '03 P4 - Constrained Permutations CCO 5 49.8% 163