Problems
| Problem | Category | Types | Points | AC % | Users | |
|---|---|---|---|---|---|---|
| CCO '05 P4 - Primed Sequences | CCO | Ad Hoc | 12p | 12.3% | 94 | |
| CCO '05 P5 - Segments | CCO | Dynamic Programming | 10p | 44.5% | 297 | |
| CCO '05 P6 - Windows | CCO | Data Structures | 30p | 14.6% | 28 | |
| CCO '06 P1 - CN Tower | CCO | Implementation | 5 | 25.5% | 142 | |
| CCO '06 P2 - R & J | CCO | Geometry | 10 | 21.1% | 36 | |
| CCO '06 P3 - Codec | CCO | Ad Hoc, Data Structures, String Algorithms | 25p | 0.0% | 0 | |
| CCO '06 P4 - CN Tower 2 | CCO | Ad Hoc | 30 | 5.3% | 12 | |
| CCO '06 P5 - Domino | CCO | Graph Theory | 30 | 3.9% | 3 | |
| CCO '06 P6 - Paint by Numbers | CCO | Ad Hoc | 30 | 14.0% | 13 | |
| CCO '07 P1 - Cows | CCO | Geometry | 10 | 32.0% | 188 | |
| CCO '07 P2 - Snowflakes | CCO | Implementation | 10 | 14.7% | 1101 | |
| CCO '07 P3 - Bowling for Numbers++ | CCO | Dynamic Programming | 20p | 10.8% | 83 | |
| CCO '07 P4 - Gerrymandering | CCO | Dynamic Programming | 20p | 1.7% | 3 | |
| CCO '07 P5 - Particle Catcher | CCO | Ad Hoc | 30p | 16.3% | 10 | |
| CCO '07 P6 - Road Construction | CCO | Graph Theory | 20p | 30.3% | 186 | |
| CCO '08 P1 - Moving Day | CCO | Greedy Algorithms | 7p | 29.3% | 108 | |
| CCO '08 P2 - King & Weber | CCO | Graph Theory | 10p | 17.2% | 70 | |
| CCO '08 P3 - Mobile | CCO | Graph Theory | 17p | 32.6% | 50 | |
| CCO '08 P4 - Herding | CCO | Graph Theory | 10p | 31.6% | 223 | |
| CCO '08 P5 - Candy | CCO | Dynamic Programming | 7p | 17.7% | 244 | |
| CCO '08 P6 - Landing | CCO | Geometry | 45 | 20.2% | 40 | |
| CCO '09 P1 - Invasion of the Boxes | CCO | Geometry | 20p | 12.8% | 22 | |
| CCO '09 P2 - Dinner | CCO | Dynamic Programming | 20p | 9.8% | 51 | |
| CCO '09 P3 - Beware the Geoducks | CCO | Graph Theory | 10 | 9.7% | 34 | |
| CCO '09 P4 - Bottle Caps | CCO | Divide and Conquer | 20p | 14.7% | 45 | |
| CCO '09 P5 - Parade | CCO | Data Structures | 17p | 17.6% | 45 | |
| CCO '09 P6 - A Weighty Problem | CCO | Dynamic Programming | 12p | 15.5% | 77 | |
| CCO '10 P1 - Barking Dogs! | CCO | Simulation | 10 | 33.9% | 232 | |
| CCO '10 P2 - Tree Pruning | CCO | Dynamic Programming | 15 | 30.2% | 194 | |
| CCO '10 P3 - Wowow | CCO | Data Structures | 15p | 23.9% | 293 | |
| CCO '10 P4 - Computer Purchase Return | CCO | Dynamic Programming | 10 | 39.1% | 387 | |
| CCO '10 P5 - Space Miner | CCO | Geometry | 15 | 32.0% | 54 | |
| CCO '10 P6 - Shuffle | CCO | Implementation | 10 | 34.9% | 155 | |
| CCO '11 P1 - Putnam | CCO | Simple Math | 7 | 27.7% | 110 | |
| CCO '11 P2 - Vampire Tunnels | CCO | Graph Theory | 15p | 19.1% | 330 | |
| CCO '11 P3 - Spies Like Us | CCO | Graph Theory | 10p | 22.9% | 204 | |
| CCO '11 P4 - Reorganization | CCO | Data Structures, Greedy Algorithms | 7p | 35.1% | 221 | |
| CCO '11 P5 - Fixing Disks | CCO | Ad Hoc | 40p | 7.7% | 6 | |
| CCO '11 P6 - Biggest (Zero Carbon) Footprint | CCO | Greedy Algorithms | 15p | 12.6% | 79 | |
| CCO '12 P1 - Choose Your Own Arithmetic | CCO | Brute Force | 7 | 22.9% | 227 | |
| CCO '12 P2 - The Hungary Games | CCO | Graph Theory | 15 | 24.5% | 487 | |
| CCO '12 P3 - Mhocskian Languages | CCO | Dynamic Programming | 20p | 49.4% | 104 | |
| CCO '12 P4 - Editor Distance | CCO | Graph Theory | 10 | 33.3% | 145 | |
| CCO '12 P5 - Sample Size | CCO | Simple Math | 7 | 24.0% | 173 | |
| CCO '12 P6 - The Winds Of War | CCO | Geometry | 12p | 40.0% | 66 | |
| CCO '13 P1 - All Your Base Belong to Palindromes | CCO | Intermediate Math | 10p | 19.0% | 235 | |
| CCO '13 P2 - Tourney | CCO | Data Structures | 12p | 42.9% | 411 | |
| CCO '13 P3 - LHC | CCO | Graph Theory | 12p | 23.4% | 430 | |
| CCO '13 P4 - A Romantic Movie Outing | CCO | Data Structures | 20p | 23.0% | 102 | |
| CCO '13 P5 - Transforming Comets | CCO | Advanced Math, Geometry, String Algorithms | 15p | 19.0% | 75 |