Problems
| Problem | Category | Types | Points | AC % | ▴ | Users |
|---|---|---|---|---|---|---|
| IOI '16 P4 - Paint by Numbers | IOI | Ad Hoc | 15p | 12.4% | 54 | |
| IOI '16 P5 - Unscrambling a Messy Bug | IOI | Divide and Conquer, Interactive | 20p | 17.7% | 65 | |
| IOI '16 P6 - Aliens | IOI | Dynamic Programming | 30p | 7.1% | 81 | |
| IOI '94 P1 - The Triangle | IOI | Dynamic Programming | 7p | 56.5% | 1475 | |
| IOI '12 P3 - Crayfish Scrivener | IOI | Data Structures | 15p | 31.0% | 82 | |
| IOI '12 P2 - Parachute Rings | IOI | Graph Theory | 25p | 15.3% | 24 | |
| IOI '09 P4 - Raisins | IOI | Dynamic Programming | 10p | 55.4% | 543 | |
| IOI '02 P4 - Batch Scheduling | IOI | Dynamic Programming | 20p | 37.6% | 320 | |
| IOI '17 P2 - Wiring | IOI | Ad Hoc | 25p | 15.5% | 56 | |
| IOI '17 P3 - Toy Train | IOI | Ad Hoc | 30p | 17.3% | 40 | |
| IOI '17 P4 - The Big Prize | IOI | Interactive | 20p | 10.5% | 57 | |
| IOI '17 P5 - Simurgh | IOI | Graph Theory | 40p | 12.1% | 16 | |
| IOI '17 P6 - Ancient Books | IOI | Ad Hoc | 25p | 11.4% | 29 | |
| IOI '10 P1 - Cluedo | IOI | Implementation | 5p | 36.0% | 137 | |
| IOI '10 P2 - Hotter Colder | IOI | Interactive | 20 | 0.5% | 3 | |
| IOI '10 P6 - Traffic Congestion | IOI | Graph Theory | 10p | 18.2% | 94 | |
| IOI '11 P2 - Race | IOI | Graph Theory | 17p | 18.5% | 207 | |
| IOI '11 P5 - Dancing Elephants | IOI | Data Structures | 40p | 10.3% | 41 | |
| IOI '11 P3 - Rice Hub | IOI | Greedy Algorithms, Simple Math | 15p | 18.2% | 125 | |
| IOI '05 P6 - Rivers | IOI | Dynamic Programming | 20p | 29.9% | 283 | |
| IOI '07 P4 - Miners | IOI | Dynamic Programming | 15p | 21.3% | 444 | |
| IOI '11 P6 - Parrots | IOI | Ad Hoc, Interactive | 20p | 3.6% | 16 | |
| IOI '11 P1 - Tropical Garden | IOI | Graph Theory | 25p | 15.2% | 37 | |
| IOI '18 P1 - Combo | IOI | Interactive | 15p | 15.0% | 179 | |
| IOI '18 P2 - Seats | IOI | Data Structures | 40p | 25.0% | 7 | |
| IOI '18 P3 - Werewolf | IOI | Ad Hoc | 30p | 24.1% | 57 | |
| IOI '18 P6 - Meetings | IOI | Data Structures | 35p | 12.0% | 10 | |
| IOI '09 P7 - Regions | IOI | Graph Theory, Interactive | 20p | 11.8% | 54 | |
| IOI '07 P1 - Aliens | IOI | Interactive | 12p | 15.3% | 21 | |
| IOI '08 P6 - Pyramid Base | IOI | Data Structures, Divide and Conquer | 40p | 12.7% | 7 | |
| IOI '08 P4 - Teleporters | IOI | Graph Theory, Greedy Algorithms | 25p | 30.2% | 13 | |
| IOI '05 P3 - Mountain | IOI | Data Structures | 20p | 13.4% | 297 | |
| IOI '05 P2 - Mean Sequence | IOI | Intermediate Math | 12p | 20.9% | 270 | |
| IOI '05 P4 - Birthday | IOI | Implementation | 12p | 15.7% | 141 | |
| IOI '19 P1 - Arranging Shoes | IOI | Data Structures, Greedy Algorithms | 15p | 16.4% | 136 | |
| IOI '19 P2 - Split the Attractions | IOI | Graph Theory | 40p | 5.1% | 26 | |
| IOI '19 P3 - Rectangles | IOI | Data Structures | 30p | 6.9% | 25 | |
| IOI '19 P6 - Sky Walking | IOI | Graph Theory | 40p | 9.6% | 12 | |
| IOI '19 P5 - Vision Program | IOI | Ad Hoc, Interactive | 20p | 8.0% | 32 | |
| IOI '19 P4 - Broken Line | IOI | Ad Hoc | 35p | 2.3% | 4 | |
| IOI '11 P4 - Crocodile's Underground City | IOI | Graph Theory | 17p | 28.5% | 86 | |
| IOI '09 P2 - Hiring | IOI | Uncategorized | 12p | 32.3% | 251 | |
| IOI '09 Practice Task 3 - Museum | IOI | Uncategorized | 15p | 48.5% | 72 | |
| IOI '09 P5 - Garage | IOI | Implementation | 7 | 46.4% | 532 | |
| IOI '09 P8 - Salesman | IOI | Data Structures, Dynamic Programming | 25p | 16.8% | 133 | |
| IOI '09 P3 - POI | IOI | Implementation | 7 | 28.8% | 527 | |
| 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 '94 P4 - The Clocks | IOI | Implementation | 10 | 27.2% | 121 | |
| IOI '95 P4 - Letter Game | IOI | Uncategorized | 15p | 26.9% | 33 |