Problems
| Problem | Category | Types | Points | AC % | Users | |
|---|---|---|---|---|---|---|
| IOI '06 P1 - Deciphering the Mayan Writing | IOI | String Algorithms | 7p | 39.0% | 445 | |
| IOI '06 P2 - Pyramid | IOI | Data Structures | 17p | 22.4% | 224 | |
| IOI '06 P4 - The Valley of Mexico | IOI | Dynamic Programming | 15p | 22.2% | 220 | |
| IOI '07 P1 - Aliens | IOI | Interactive | 12p | 16.2% | 25 | |
| IOI '07 P2 - Flood | IOI | Graph Theory | 25p | 44.2% | 137 | |
| IOI '07 P3 - Sails | IOI | Data Structures | 25p | 21.6% | 222 | |
| IOI '07 P4 - Miners | IOI | Dynamic Programming | 15p | 21.3% | 448 | |
| IOI '07 P5 - Pairs | IOI | Data Structures | 25p | 10.1% | 117 | |
| IOI '07 P6 - Training | IOI | Dynamic Programming, Graph Theory | 40p | 27.5% | 66 | |
| IOI '08 P1 - Type Printer | IOI | String Algorithms | 12p | 20.1% | 418 | |
| IOI '08 P2 - Islands | IOI | Dynamic Programming, Graph Theory | 25p | 11.0% | 115 | |
| IOI '08 P3 - Fish | IOI | Uncategorized | 35p | 9.9% | 64 | |
| IOI '08 P4 - Teleporters | IOI | Graph Theory, Greedy Algorithms | 25p | 30.9% | 14 | |
| IOI '08 P6 - Pyramid Base | IOI | Data Structures, Divide and Conquer | 40p | 10.8% | 9 | |
| IOI '09 P1 - Archery | IOI | Ad Hoc, Simulation | 45p | 13.5% | 39 | |
| IOI '09 P2 - Hiring | IOI | Uncategorized | 12p | 32.3% | 264 | |
| IOI '09 P3 - POI | IOI | Implementation | 7 | 29.0% | 539 | |
| IOI '09 P4 - Raisins | IOI | Dynamic Programming | 10p | 55.0% | 556 | |
| IOI '09 P5 - Garage | IOI | Implementation | 7 | 46.4% | 550 | |
| IOI '09 P6 - Mecho | IOI | Graph Theory | 15 | 14.9% | 330 | |
| IOI '09 P7 - Regions | IOI | Graph Theory, Interactive | 20p | 12.0% | 61 | |
| IOI '09 P8 - Salesman | IOI | Data Structures, Dynamic Programming | 25p | 16.8% | 137 | |
| IOI '09 Practice Task 3 - Museum | IOI | Uncategorized | 15p | 46.6% | 74 | |
| IOI '10 P1 - Cluedo | IOI | Implementation | 5p | 36.3% | 149 | |
| IOI '10 P2 - Hotter Colder | IOI | Interactive | 20 | 0.5% | 3 | |
| IOI '10 P3 - Quality of Living | IOI | Data Structures | 15p | 28.7% | 161 | |
| IOI '10 P3 - Quality of Living (Standard I/O) | IOI | Data Structures | 15p | 28.6% | 350 | |
| IOI '10 P5 - Memory | IOI | Implementation, Interactive | 5p | 22.6% | 144 | |
| IOI '10 P6 - Traffic Congestion | IOI | Graph Theory | 10p | 18.6% | 103 | |
| IOI '10 P6 - Traffic Congestion (Standard I/O) | IOI | Graph Theory | 10p | 33.1% | 419 | |
| IOI '10 P7 - Maze | IOI | Graph Theory | 25p | 0.0% | 0 | |
| IOI '11 P1 - Tropical Garden | IOI | Graph Theory | 25p | 15.5% | 40 | |
| IOI '11 P1 - Tropical Garden (Standard I/O) | IOI | Graph Theory | 25p | 11.8% | 168 | |
| IOI '11 P2 - Race | IOI | Graph Theory | 17p | 18.5% | 228 | |
| IOI '11 P2 - Race (Standard I/O) | IOI | Graph Theory | 17p | 15.3% | 548 | |
| IOI '11 P3 - Rice Hub | IOI | Greedy Algorithms, Simple Math | 15p | 18.4% | 135 | |
| IOI '11 P3 - Rice Hub (Standard I/O) | IOI | Greedy Algorithms, Simple Math | 15p | 19.4% | 504 | |
| IOI '11 P4 - Crocodile's Underground City | IOI | Graph Theory | 17p | 27.8% | 94 | |
| IOI '11 P4 - Crocodile's Underground City (Standard I/O) | IOI | Graph Theory | 17p | 19.2% | 379 | |
| IOI '11 P5 - Dancing Elephants | IOI | Data Structures | 40p | 10.1% | 44 | |
| IOI '11 P5 - Dancing Elephants (Standard I/O) | IOI | Data Structures | 20p | 10.6% | 97 | |
| IOI '11 P6 - Parrots | IOI | Ad Hoc, Interactive | 20p | 3.6% | 17 | |
| IOI '12 P1 - Pebbling Odometer | IOI | Ad Hoc, Implementation | 30p | 2.1% | 6 | |
| IOI '12 P2 - Parachute Rings | IOI | Graph Theory | 25p | 15.6% | 25 | |
| IOI '12 P2 - Parachute Rings (Standard I/O) | IOI | Graph Theory | 25p | 11.6% | 112 | |
| IOI '12 P3 - Crayfish Scrivener | IOI | Data Structures | 15p | 31.2% | 85 | |
| IOI '12 P3 - Crayfish Scrivener (Standard I/O) | IOI | Data Structures | 15p | 16.6% | 277 | |
| IOI '12 P4 - Ideal City | IOI | Graph Theory | 25p | 23.6% | 12 | |
| IOI '12 P4 - Ideal City (Standard I/O) | IOI | Graph Theory | 25p | 50.0% | 7 | |
| IOI '12 P5 - Last Supper | IOI | Ad Hoc, Interactive | 30p | 21.7% | 9 |