Problems
| Problem | Category | Types | Points | AC % | Users ▾ | |
|---|---|---|---|---|---|---|
| IOI '94 P1 - The Triangle | IOI | Dynamic Programming | 7p | 56.5% | 1484 | |
| IOI '04 P4 - Phidias | IOI | Dynamic Programming | 10p | 53.6% | 889 | |
| IOI '00 P1 - Palindrome | IOI | Dynamic Programming | 10p | 18.5% | 830 | |
| IOI '01 P1 - Mobile Phones | IOI | Data Structures | 15p | 27.4% | 704 | |
| IOI '09 P4 - Raisins | IOI | Dynamic Programming | 10p | 55.4% | 543 | |
| IOI '11 P2 - Race (Standard I/O) | IOI | Graph Theory | 17p | 15.2% | 536 | |
| IOI '09 P5 - Garage | IOI | Implementation | 7 | 46.4% | 532 | |
| IOI '13 P1 - Dreaming (Standard I/O) | IOI | Graph Theory | 15p | 18.4% | 532 | |
| IOI '09 P3 - POI | IOI | Implementation | 7 | 28.7% | 528 | |
| IOI '11 P3 - Rice Hub (Standard I/O) | IOI | Greedy Algorithms, Simple Math | 15p | 19.4% | 496 | |
| IOI '07 P4 - Miners | IOI | Dynamic Programming | 15p | 21.2% | 444 | |
| IOI '06 P1 - Deciphering the Mayan Writing | IOI | String Algorithms | 7p | 39.5% | 433 | |
| IOI '10 P6 - Traffic Congestion (Standard I/O) | IOI | Graph Theory | 10p | 33.0% | 416 | |
| IOI '08 P1 - Type Printer | IOI | String Algorithms | 12p | 20.0% | 409 | |
| IOI '11 P4 - Crocodile's Underground City (Standard I/O) | IOI | Graph Theory | 17p | 19.1% | 374 | |
| IOI '10 P3 - Quality of Living (Standard I/O) | IOI | Data Structures | 15p | 28.1% | 338 | |
| IOI '09 P6 - Mecho | IOI | Graph Theory | 15 | 14.8% | 324 | |
| IOI '02 P4 - Batch Scheduling | IOI | Dynamic Programming | 20p | 37.6% | 322 | |
| IOI '13 P4 - Cave | IOI | Divide and Conquer, Interactive | 10p | 18.6% | 311 | |
| IOI '05 P3 - Mountain | IOI | Data Structures | 20p | 13.4% | 299 | |
| IOI '05 P6 - Rivers | IOI | Dynamic Programming | 20p | 30.0% | 286 | |
| IOI '14 P2 - Wall (Standard I/O) | IOI | Data Structures | 20p | 15.9% | 286 | |
| IOI '13 P5 - Robots (Standard I/O) | IOI | Ad Hoc | 20p | 15.0% | 278 | |
| IOI '12 P3 - Crayfish Scrivener (Standard I/O) | IOI | Data Structures | 15p | 16.8% | 276 | |
| IOI '05 P2 - Mean Sequence | IOI | Intermediate Math | 12p | 20.8% | 270 | |
| IOI '96 P1 - A Game | IOI | Dynamic Programming, Game Theory | 10 | 39.2% | 270 | |
| IOI '09 P2 - Hiring | IOI | Uncategorized | 12p | 32.3% | 252 | |
| IOI '05 P1 - Garden | IOI | Dynamic Programming | 20p | 21.7% | 252 | |
| IOI '16 P1 - Detecting Molecules (Standard I/O) | IOI | Greedy Algorithms | 12p | 14.1% | 230 | |
| IOI '13 P1 - Dreaming | IOI | Graph Theory | 15p | 22.9% | 229 | |
| IOI '00 P4 - Walls | IOI | Graph Theory | 12 | 36.2% | 228 | |
| IOI '98 P4 - Picture | IOI | Geometry | 15p | 30.9% | 225 | |
| IOI '14 P4 - Gondola (Standard I/O) | IOI | Ad Hoc | 15 | 8.5% | 222 | |
| IOI '06 P2 - Pyramid | IOI | Data Structures | 17p | 22.5% | 218 | |
| IOI '14 P3 - Game | IOI | Graph Theory | 20p | 27.8% | 217 | |
| IOI '06 P4 - The Valley of Mexico | IOI | Dynamic Programming | 15p | 22.0% | 214 | |
| IOI '11 P2 - Race | IOI | Graph Theory | 17p | 18.6% | 212 | |
| IOI '14 P2 - Wall | IOI | Data Structures | 20p | 24.7% | 211 | |
| IOI '04 P5 - Farmer | IOI | Uncategorized | 15p | 13.3% | 210 | |
| IOI '07 P3 - Sails | IOI | Data Structures | 25p | 21.4% | 210 | |
| IOI '99 P1 - Little Shop of Flowers | IOI | Dynamic Programming | 10 | 30.6% | 206 | |
| IOI '14 P5 - Friend (Standard I/O) | IOI | Ad Hoc | 30p | 18.2% | 189 | |
| IOI '15 P1 - Boxes with Souvenirs (Standard I/O) | IOI | Ad Hoc | 15p | 8.2% | 189 | |
| IOI '04 P2 - Hermes | IOI | Uncategorized | 15p | 23.5% | 188 | |
| IOI '15 P5 - Sorting (Standard I/O) | IOI | Ad Hoc | 25p | 18.6% | 186 | |
| IOI '00 P5 - Post Office | IOI | Dynamic Programming | 15p | 40.6% | 183 | |
| IOI '14 Practice Task 1 - Square | IOI | Dynamic Programming | 10p | 51.6% | 182 | |
| IOI '18 P1 - Combo | IOI | Interactive | 15p | 15.0% | 179 | |
| IOI '98 P3 - Party Lamps | IOI | Ad Hoc | 12p | 34.0% | 168 | |
| IOI '11 P1 - Tropical Garden (Standard I/O) | IOI | Graph Theory | 25p | 11.8% | 167 |