Problems
| Problem | Category | Types ▴ | Points | AC % | Users | |
|---|---|---|---|---|---|---|
| IOI '05 P1 - Garden | IOI | Dynamic Programming | 20p | 21.7% | 252 | |
| IOI '04 P4 - Phidias | IOI | Dynamic Programming | 10p | 53.5% | 884 | |
| IOI '07 P6 - Training | IOI | Dynamic Programming, Graph Theory | 40p | 27.9% | 67 | |
| IOI '08 P2 - Islands | IOI | Dynamic Programming, Graph Theory | 25p | 10.4% | 111 | |
| IOI '14 Practice Task 1 - Square | IOI | Dynamic Programming | 10p | 44.3% | 179 | |
| IOI '06 P4 - The Valley of Mexico | IOI | Dynamic Programming | 15p | 22.0% | 214 | |
| IOI '16 P6 - Aliens (Standard I/O) | IOI | Dynamic Programming | 30p | 6.1% | 63 | |
| IOI '20 P4 - Packing Biscuits | IOI | Dynamic Programming, Simple Math | 25p | 13.4% | 15 | |
| IOI '23 P1 - Closing Time | IOI | Dynamic Programming, Graph Theory, Greedy Algorithms | 25p | 4.6% | 20 | |
| IOI '23 P3 - Soccer Stadium | IOI | Dynamic Programming | 30p | 4.7% | 12 | |
| IOI '01 P2 - Ioiwari Game | IOI | Game Theory | 12p | 34.5% | 7 | |
| IOI '98 P4 - Picture | IOI | Geometry | 15p | 31.0% | 222 | |
| IOI '03 P6 - Seeing the Boundary | IOI | Geometry | 20p | 16.1% | 63 | |
| IOI '04 P3 - Polygon | IOI | Geometry | 20p | 3.1% | 1 | |
| IOI '14 P3 - Game | IOI | Graph Theory | 20p | 27.8% | 217 | |
| IOI '97 P1 - Mars Explorer | IOI | Graph Theory | 20p | 12.8% | 16 | |
| IOI '13 P1 - Dreaming | IOI | Graph Theory | 15p | 22.9% | 226 | |
| IOI '16 P3 - Shortcut | IOI | Graph Theory | 40p | 9.0% | 15 | |
| IOI '12 P2 - Parachute Rings | IOI | Graph Theory | 25p | 15.3% | 24 | |
| IOI '17 P1 - Nowruz | IOI | Graph Theory | 20p | 0.0% | 0 | |
| IOI '17 P5 - Simurgh | IOI | Graph Theory | 40p | 12.1% | 16 | |
| IOI '10 P6 - Traffic Congestion | IOI | Graph Theory | 10p | 18.2% | 94 | |
| IOI '10 P7 - Maze | IOI | Graph Theory | 25p | 0.0% | 0 | |
| IOI '11 P2 - Race | IOI | Graph Theory | 17p | 18.5% | 207 | |
| IOI '11 P1 - Tropical Garden | IOI | Graph Theory | 25p | 15.2% | 37 | |
| IOI '09 P7 - Regions | IOI | Graph Theory, Interactive | 20p | 11.8% | 54 | |
| IOI '08 P4 - Teleporters | IOI | Graph Theory, Greedy Algorithms | 25p | 30.2% | 13 | |
| IOI '19 P2 - Split the Attractions | IOI | Graph Theory | 40p | 5.1% | 26 | |
| IOI '19 P6 - Sky Walking | IOI | Graph Theory | 40p | 9.6% | 12 | |
| IOI '11 P4 - Crocodile's Underground City | IOI | Graph Theory | 17p | 28.5% | 86 | |
| IOI '09 P6 - Mecho | IOI | Graph Theory | 15 | 14.8% | 324 | |
| IOI '94 P2 - The Castle | IOI | Graph Theory, Implementation | 10 | 18.8% | 127 | |
| IOI '96 P3 - Network of Schools | IOI | Graph Theory | 12p | 23.7% | 83 | |
| IOI '00 P4 - Walls | IOI | Graph Theory | 12 | 35.9% | 224 | |
| IOI '12 P4 - Ideal City (Standard I/O) | IOI | Graph Theory | 25p | 42.9% | 5 | |
| IOI '07 P2 - Flood | IOI | Graph Theory | 25p | 45.0% | 135 | |
| IOI '11 P1 - Tropical Garden (Standard I/O) | IOI | Graph Theory | 25p | 11.8% | 166 | |
| IOI '11 P2 - Race (Standard I/O) | IOI | Graph Theory | 17p | 15.2% | 529 | |
| IOI '11 P4 - Crocodile's Underground City (Standard I/O) | IOI | Graph Theory | 17p | 19.1% | 374 | |
| IOI '12 P2 - Parachute Rings (Standard I/O) | IOI | Graph Theory | 25p | 11.5% | 111 | |
| IOI '13 P1 - Dreaming (Standard I/O) | IOI | Graph Theory | 15p | 18.6% | 529 | |
| IOI '16 P3 - Shortcut (Standard I/O) | IOI | Graph Theory | 40p | 1.8% | 7 | |
| IOI '10 P6 - Traffic Congestion (Standard I/O) | IOI | Graph Theory | 10p | 33.0% | 416 | |
| IOI '20 P2 - Connecting Supertrees | IOI | Graph Theory | 15p | 13.8% | 54 | |
| IOI '21 P2 - Keys | IOI | Graph Theory | 25p | 10.9% | 14 | |
| IOI '18 P5 - Highway Tolls | IOI | Graph Theory, Interactive | 30p | 11.7% | 14 | |
| IOI '12 P4 - Ideal City | IOI | Graph Theory | 25p | 25.0% | 10 | |
| IOI '23 P2 - Longest Trip | IOI | Graph Theory, Interactive | 25p | 3.1% | 13 | |
| IOI '16 P1 - Detecting Molecules | IOI | Greedy Algorithms | 12p | 11.8% | 155 | |
| IOI '11 P3 - Rice Hub | IOI | Greedy Algorithms, Simple Math | 15p | 18.2% | 125 |