Problems
| Problem | Category | Types ▴ | Points | AC % | Users | |
|---|---|---|---|---|---|---|
| IOI '14 P2 - Wall | IOI | Data Structures | 20p | 24.7% | 211 | |
| IOI '13 P3 - Wombats | IOI | Data Structures, Graph Theory | 40p | 13.2% | 38 | |
| IOI '01 P1 - Mobile Phones | IOI | Data Structures | 15p | 27.5% | 704 | |
| IOI '98 P1 - Contact | IOI | Data Structures | 10p | 8.9% | 58 | |
| IOI '13 P6 - Game | IOI | Data Structures | 25p | 9.3% | 80 | |
| IOI '12 P3 - Crayfish Scrivener | IOI | Data Structures | 15p | 31.0% | 82 | |
| IOI '11 P5 - Dancing Elephants | IOI | Data Structures | 40p | 10.3% | 41 | |
| IOI '18 P2 - Seats | IOI | Data Structures | 40p | 25.0% | 7 | |
| IOI '18 P6 - Meetings | IOI | Data Structures | 35p | 12.0% | 10 | |
| IOI '08 P6 - Pyramid Base | IOI | Data Structures, Divide and Conquer | 40p | 12.5% | 7 | |
| IOI '05 P3 - Mountain | IOI | Data Structures | 20p | 13.4% | 299 | |
| IOI '19 P1 - Arranging Shoes | IOI | Data Structures, Greedy Algorithms | 15p | 16.4% | 136 | |
| IOI '19 P3 - Rectangles | IOI | Data Structures | 30p | 6.9% | 25 | |
| IOI '09 P8 - Salesman | IOI | Data Structures, Dynamic Programming | 25p | 16.8% | 133 | |
| IOI '95 Practice Task 2 - Word Chains | IOI | Data Structures | 12 | 43.9% | 54 | |
| IOI '06 P2 - Pyramid | IOI | Data Structures | 17p | 22.5% | 218 | |
| IOI '12 P6 - Jousting Tournament (Standard I/O) | IOI | Data Structures | 17p | 16.7% | 12 | |
| IOI '07 P3 - Sails | IOI | Data Structures | 25p | 21.4% | 210 | |
| IOI '07 P5 - Pairs | IOI | Data Structures | 25p | 10.1% | 117 | |
| 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 '12 P3 - Crayfish Scrivener (Standard I/O) | IOI | Data Structures | 15p | 16.8% | 276 | |
| IOI '13 P3 - Wombats (Standard I/O) | IOI | Data Structures, Graph Theory | 40p | 9.5% | 60 | |
| IOI '13 P6 - Game (Standard I/O) | IOI | Data Structures, Intermediate Math | 17p | 8.4% | 150 | |
| IOI '14 P2 - Wall (Standard I/O) | IOI | Data Structures | 20p | 15.9% | 286 | |
| IOI '10 P3 - Quality of Living (Standard I/O) | IOI | Data Structures | 15p | 28.1% | 338 | |
| IOI '21 P1 - Distributing Candies | IOI | Data Structures | 30p | 13.4% | 29 | |
| IOI '21 P4 - Mutating DNA | IOI | Data Structures, Greedy Algorithms | 12p | 28.9% | 75 | |
| IOI '12 P6 - Jousting Tournament | IOI | Data Structures | 17p | 16.4% | 16 | |
| IOI '22 P3 - Radio Towers | IOI | Data Structures | 30p | 7.2% | 15 | |
| IOI '22 P1 - Catfish Farm | IOI | Data Structures, Dynamic Programming | 25p | 8.1% | 44 | |
| IOI '22 P4 - Digital Circuit | IOI | Data Structures, Graph Theory | 25p | 25.2% | 25 | |
| IOI '23 P4 - Beech Tree | IOI | Data Structures, Graph Theory | 35p | 4.9% | 3 | |
| IOI '23 P5 - Overtaking | IOI | Data Structures | 25p | 6.1% | 11 | |
| IOI '13 P4 - Cave | IOI | Divide and Conquer, Interactive | 10p | 18.6% | 311 | |
| IOI '16 P5 - Unscrambling a Messy Bug | IOI | Divide and Conquer, Interactive | 20p | 17.7% | 65 | |
| IOI '14 Practice Task 3 - Tile | IOI | Divide and Conquer | 10p | 28.0% | 55 | |
| IOI '00 P1 - Palindrome | IOI | Dynamic Programming | 10p | 18.5% | 830 | |
| IOI '16 P6 - Aliens | IOI | Dynamic Programming | 30p | 7.1% | 81 | |
| IOI '94 P1 - The Triangle | IOI | Dynamic Programming | 7p | 56.5% | 1484 | |
| IOI '09 P4 - Raisins | IOI | Dynamic Programming | 10p | 55.4% | 543 | |
| IOI '02 P4 - Batch Scheduling | IOI | Dynamic Programming | 20p | 37.6% | 322 | |
| IOI '05 P6 - Rivers | IOI | Dynamic Programming | 20p | 30.0% | 286 | |
| IOI '07 P4 - Miners | IOI | Dynamic Programming | 15p | 21.2% | 444 | |
| IOI '95 Practice Task 3 - Bar Codes | IOI | Dynamic Programming | 12p | 35.4% | 23 | |
| IOI '96 P1 - A Game | IOI | Dynamic Programming, Game Theory | 10 | 39.2% | 270 | |
| IOI '96 P5 - Longest Prefix | IOI | Dynamic Programming | 12 | 20.8% | 112 | |
| IOI '98 P6 - Polygon | IOI | Dynamic Programming | 15 | 32.0% | 61 | |
| IOI '99 P1 - Little Shop of Flowers | IOI | Dynamic Programming | 10 | 30.6% | 206 | |
| IOI '00 P5 - Post Office | IOI | Dynamic Programming | 15p | 40.6% | 183 |