Problems
| Problem | Category | Types | Points ▾ | AC % | Users | |
|---|---|---|---|---|---|---|
| IOI '05 Practice Task 3 - Polish Flag | IOI | Uncategorized | 20p | 10.6% | 4 | |
| IOI '02 P2 - Utopia Divided | IOI | Uncategorized | 20p | 24.5% | 91 | |
| 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 | |
| IOI '13 P2 - Art Class (Standard I/O) | IOI | Ad Hoc | 20p | 2.7% | 89 | |
| IOI '13 P5 - Robots (Standard I/O) | IOI | Ad Hoc | 20p | 15.0% | 278 | |
| IOI '14 P2 - Wall (Standard I/O) | IOI | Data Structures | 20p | 15.9% | 286 | |
| IOI '20 P3 - Carnival Tickets | IOI | Ad Hoc, Greedy Algorithms | 20p | 11.8% | 37 | |
| IOI '20 P6 - Stations | IOI | Ad Hoc, Graph Theory | 20p | 14.5% | 22 | |
| IOI '18 P4 - Mechanical Doll | IOI | Ad Hoc, Graph Theory | 20p | 22.6% | 13 | |
| IOI '04 P3 - Polygon | IOI | Geometry | 20p | 3.1% | 1 | |
| IOI '11 P2 - Race | IOI | Graph Theory | 17p | 18.5% | 207 | |
| IOI '11 P4 - Crocodile's Underground City | IOI | Graph Theory | 17p | 28.5% | 86 | |
| IOI '06 P2 - Pyramid | IOI | Data Structures | 17p | 22.5% | 217 | |
| IOI '12 P6 - Jousting Tournament (Standard I/O) | IOI | Data Structures | 17p | 16.7% | 12 | |
| 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 '13 P6 - Game (Standard I/O) | IOI | Data Structures, Intermediate Math | 17p | 8.4% | 150 | |
| IOI '12 P6 - Jousting Tournament | IOI | Data Structures | 17p | 16.4% | 16 | |
| IOI '10 P3 - Quality of Living | IOI | Data Structures | 15p | 27.9% | 147 | |
| IOI '15 P1 - Boxes with Souvenirs | IOI | Ad Hoc | 15p | 13.4% | 98 | |
| IOI '15 P4 - Horses | IOI | Ad Hoc | 15p | 11.4% | 102 | |
| IOI '14 P4 - Gondola | IOI | Ad Hoc | 15p | 11.1% | 99 | |
| IOI '13 P1 - Dreaming | IOI | Graph Theory | 15p | 22.9% | 226 | |
| IOI '01 P1 - Mobile Phones | IOI | Data Structures | 15p | 27.5% | 702 | |
| IOI '98 P4 - Picture | IOI | Geometry | 15p | 31.0% | 222 | |
| IOI '16 P4 - Paint by Numbers | IOI | Ad Hoc | 15p | 12.4% | 54 | |
| IOI '12 P3 - Crayfish Scrivener | IOI | Data Structures | 15p | 31.0% | 82 | |
| IOI '11 P3 - Rice Hub | IOI | Greedy Algorithms, Simple Math | 15p | 18.2% | 125 | |
| IOI '07 P4 - Miners | IOI | Dynamic Programming | 15p | 21.3% | 444 | |
| IOI '18 P1 - Combo | IOI | Interactive | 15p | 15.0% | 179 | |
| IOI '19 P1 - Arranging Shoes | IOI | Data Structures, Greedy Algorithms | 15p | 16.4% | 136 | |
| IOI '09 Practice Task 3 - Museum | IOI | Uncategorized | 15p | 48.5% | 72 | |
| IOI '09 P6 - Mecho | IOI | Graph Theory | 15 | 14.8% | 324 | |
| IOI '95 P4 - Letter Game | IOI | Uncategorized | 15p | 26.9% | 33 | |
| IOI '95 Practice Task 1 - Fence Factory | IOI | Uncategorized | 15p | 21.7% | 10 | |
| IOI '95 P5 - Street Race | IOI | Uncategorized | 15p | 24.1% | 39 | |
| IOI '95 P2 - Shopping Offers | IOI | Uncategorized | 15p | 27.5% | 42 | |
| IOI '95 P1 - Packing Rectangles | IOI | Uncategorized | 15p | 45.3% | 26 | |
| IOI '98 P6 - Polygon | IOI | Dynamic Programming | 15 | 32.0% | 61 | |
| IOI '98 P5 - Camelot | IOI | Uncategorized | 15p | 40.6% | 51 | |
| IOI '98 P2 - Starry Night | IOI | Uncategorized | 15 | 41.3% | 28 | |
| IOI '99 P5 - Flatten | IOI | Uncategorized | 15p | 21.8% | 16 | |
| IOI '99 P4 - Traffic Lights | IOI | Uncategorized | 15 | 31.1% | 28 | |
| IOI '00 P5 - Post Office | IOI | Dynamic Programming | 15p | 40.6% | 183 | |
| IOI '00 P2 - Car Parking | IOI | Uncategorized | 15p | 17.7% | 53 | |
| IOI '02 P1 - The Troublesome Frog | IOI | Uncategorized | 15p | 16.5% | 78 | |
| IOI '04 P5 - Farmer | IOI | Uncategorized | 15p | 13.3% | 210 | |
| IOI '04 P1 - Artemis | IOI | Uncategorized | 15p | 6.9% | 68 | |
| IOI '03 Practice Task 1 - Balancing Act | IOI | Uncategorized | 15 | 46.6% | 125 |