Problems
| Problem | Category | Types | Points | AC % | ▾ | Users |
|---|---|---|---|---|---|---|
| IOI '02 P2 - Utopia Divided | IOI | Uncategorized | 20p | 24.5% | 91 | |
| IOI '06 P2 - Pyramid | IOI | Data Structures | 17p | 22.5% | 218 | |
| IOI '14 Practice Task 2 - Station | IOI | Greedy Algorithms | 7p | 57.9% | 50 | |
| IOI '14 Practice Task 3 - Tile | IOI | Divide and Conquer | 10p | 28.0% | 55 | |
| IOI '07 P6 - Training | IOI | Dynamic Programming, Graph Theory | 40p | 27.9% | 67 | |
| IOI '08 P2 - Islands | IOI | Dynamic Programming, Graph Theory | 25p | 10.7% | 111 | |
| IOI '14 Practice Task 1 - Square | IOI | Dynamic Programming | 10p | 51.6% | 182 | |
| IOI '08 P1 - Type Printer | IOI | String Algorithms | 12p | 20.0% | 409 | |
| IOI '07 P3 - Sails | IOI | Data Structures | 25p | 21.4% | 210 | |
| IOI '06 P1 - Deciphering the Mayan Writing | IOI | String Algorithms | 7p | 39.5% | 433 | |
| IOI '08 P3 - Fish | IOI | Uncategorized | 35p | 9.9% | 63 | |
| IOI '07 P5 - Pairs | IOI | Data Structures | 25p | 10.1% | 117 | |
| IOI '06 P4 - The Valley of Mexico | IOI | Dynamic Programming | 15p | 22.0% | 214 | |
| IOI '09 P1 - Archery | IOI | Ad Hoc, Simulation | 45p | 13.4% | 37 | |
| IOI '07 P2 - Flood | IOI | Graph Theory | 25p | 45.0% | 135 | |
| IOI '18 P5 - Highway Tolls | IOI | Graph Theory, Interactive | 30p | 11.7% | 14 | |
| IOI '18 P4 - Mechanical Doll | IOI | Ad Hoc, Graph Theory | 20p | 22.6% | 13 | |
| IOI '12 P4 - Ideal City | IOI | Graph Theory | 25p | 27.7% | 12 | |
| IOI '12 P6 - Jousting Tournament | IOI | Data Structures | 17p | 16.4% | 16 | |
| IOI '12 P5 - Last Supper | IOI | Ad Hoc, Interactive | 30p | 21.9% | 6 | |
| IOI '13 P4 - Cave | IOI | Divide and Conquer, Interactive | 10p | 18.6% | 311 | |
| IOI '13 P5 - Robots | IOI | Ad Hoc | 20p | 18.3% | 90 | |
| IOI '13 P1 - Dreaming | IOI | Graph Theory | 15p | 22.9% | 229 | |
| IOI '13 P3 - Wombats | IOI | Data Structures, Graph Theory | 40p | 13.2% | 38 | |
| IOI '13 P6 - Game | IOI | Data Structures | 25p | 9.3% | 80 | |
| IOI '01 P2 - Ioiwari Game | IOI | Game Theory | 12p | 34.5% | 7 | |
| IOI '17 P1 - Nowruz | IOI | Graph Theory | 20p | 0.0% | 0 | |
| IOI '10 P7 - Maze | IOI | Graph Theory | 25p | 0.0% | 0 | |
| IOI '95 Practice Task 1 - Fence Factory | IOI | Uncategorized | 15p | 21.7% | 10 | |
| IOI '95 Practice Task 3 - Bar Codes | IOI | Dynamic Programming | 12p | 35.4% | 23 | |
| IOI '95 P2 - Shopping Offers | IOI | Uncategorized | 15p | 27.5% | 42 | |
| IOI '95 Practice Task 2 - Word Chains | IOI | Data Structures | 12 | 43.9% | 54 | |
| IOI '99 P5 - Flatten | IOI | Uncategorized | 15p | 21.8% | 16 | |
| IOI '99 P2 - Hidden Codes | IOI | Uncategorized | 20p | 14.4% | 10 | |
| IOI '99 P6 - A Strip of Land | IOI | Uncategorized | 20p | 13.4% | 34 | |
| IOI '99 P4 - Traffic Lights | IOI | Uncategorized | 15 | 31.1% | 28 | |
| IOI '99 P1 - Little Shop of Flowers | IOI | Dynamic Programming | 10 | 30.6% | 206 | |
| IOI '03 P6 - Seeing the Boundary | IOI | Geometry | 20p | 16.1% | 63 | |
| IOI '03 P5 - Amazing Robots | IOI | Uncategorized | 20 | 11.4% | 38 | |
| IOI '03 P2 - Comparing Code | IOI | Uncategorized | 25p | 17.6% | 32 | |
| IOI '03 Practice Task 1 - Balancing Act | IOI | Uncategorized | 15 | 46.6% | 125 | |
| IOI '12 P6 - Jousting Tournament (Standard I/O) | IOI | Data Structures | 17p | 16.7% | 12 | |
| IOI '12 P1 - Pebbling Odometer | IOI | Ad Hoc, Implementation | 30p | 2.9% | 4 | |
| IOI '12 P4 - Ideal City (Standard I/O) | IOI | Graph Theory | 25p | 46.7% | 6 | |
| IOI '11 P1 - Tropical Garden (Standard I/O) | IOI | Graph Theory | 25p | 11.8% | 167 | |
| IOI '11 P2 - Race (Standard I/O) | IOI | Graph Theory | 17p | 15.2% | 536 | |
| IOI '11 P3 - Rice Hub (Standard I/O) | IOI | Greedy Algorithms, Simple Math | 15p | 19.4% | 496 | |
| IOI '11 P4 - Crocodile's Underground City (Standard I/O) | IOI | Graph Theory | 17p | 19.1% | 374 | |
| IOI '11 P5 - Dancing Elephants (Standard I/O) | IOI | Data Structures | 20p | 10.6% | 93 | |
| IOI '04 P2 - Hermes (Hard) | IOI | Data Structures | 20p | 8.1% | 9 |