Problems
Problem search
| Problem | Category | Points | AC % | Users |
|---|---|---|---|---|
| Binary Indexed Tree Test | Uncategorized | 10p | 47.1% | 14 |
| Dynamic Tree Test (Easy) | Uncategorized | 35p | 20.8% | 5 |
| Duty Of Call | Contest Problems | 10p | 24.0% | 8 |
| Almost Sorted | Uncategorized | 10p | 17.6% | 6 |
| ECOO '19 R1 P3 - Side Scrolling Simulator | Contest Problems | 10p | 17.1% | 5 |
| Mars Elections | ICS3 & ICS4 | 5 | 21.7% | 61 |
| Elevator Doors | ICS3 & ICS4 | 3 | 66.7% | 5 |
| Encryption by Reversal | Contest Problems | 7 | 24.6% | 10 |
| English | Uncategorized | 5 | 16.9% | 21 |
| CCC '22 J2 - Fergusonball Ratings | Contest Problems | 5 | 65.0% | 55 |
| Fruit Boats | Uncategorized | 7p | 19.6% | 30 |
| Greatest Common Divisor | ICS3 & ICS4 | 3 | 64.1% | 263 |
| CCC '22 S2 - Good Groups | Contest Problems | 5 | 42.9% | 7 |
| Group Assignment | ICS3 & ICS4 | 3 | 54.9% | 245 |
| Guessing Game | ICS3 & ICS4 | 3 | 27.5% | 257 |
| Hackathon Present 0 | Uncategorized | 1 | 9.8% | 4 |
| Hackathon Present 5 | Contest Problems | 1 | 56.4% | 25 |
| Hackathon 7 - Type Racer Battle (with Naccarato) | Seasonal | 7 | 24.3% | 17 |
| Hackathon Present 8 | Seasonal | 8 | 81.8% | 18 |
| CCC '22 J3 - Harp Tuning | Contest Problems | 5 | 48.3% | 28 |
| Hashbrown | Classics | 10 | 37.5% | 9 |
| Heart Rate | Uncategorized | 1 | 58.9% | 46 |
| Hello, World! | Uncategorized | 1 | 62.1% | 185 |
| Hi Lo | ICS3 & ICS4 | 3 | 24.8% | 196 |
| Hockey Scores | Contest Problems | 12 | 22.2% | 1 |
| How's the Weather | ICS3 & ICS4 | 3 | 80.0% | 7 |
| Huffman Decoding | Uncategorized | 5 | 28.9% | 30 |
| Huffman Encoding | Uncategorized | 5 | 48.0% | 44 |
| Integer Type | ICS3 & ICS4 | 3 | 31.1% | 30 |
| Investment Calculator | ICS3 & ICS4 | 3 | 32.0% | 239 |
| IOI '01 P1 - Mobile Phones | Classics | 15 | 32.9% | 18 |
| Is Prime | ICS3 & ICS4 | 3 | 37.4% | 279 |
| k-Intersecting pair | Uncategorized | 12 | 13.3% | 11 |
| Lady of the Lake | Contest Problems | 3 | 14.1% | 18 |
| High Octane League of Legends Gameplay | Uncategorized | 3 | 44.4% | 25 |
| Leap Year | ICS3 & ICS4 | 3 | 47.5% | 31 |
| Lexicographically Sorted Words | Uncategorized | 5p | 61.5% | 37 |
| Loneliness | Uncategorized | 5 | 40.4% | 16 |
| Lowest Factor | ICS3 & ICS4 | 3 | 40.0% | 18 |
| Math Class Purge | Uncategorized | 3 | 39.3% | 44 |
| Math Tutor | ICS3 & ICS4 | 3 | 32.9% | 260 |
| Matrix Test | Contest Problems | 5 | 18.8% | 17 |
| Maximum-Minimum Difference | Uncategorized | 10 | 17.8% | 17 |
| Max of Three | ICS3 & ICS4 | 3 | 52.0% | 40 |
| Multiple Integer Addition | Uncategorized | 4 | 73.7% | 65 |
| Minecraft Redstone | Uncategorized | 5 | 43.5% | 15 |
| Monogram | ICS3 & ICS4 | 4p | 33.0% | 204 |
| Making an Easy Problem | Contest Problems | 3 | 68.3% | 46 |
| Were You Paying Attention? | Contest Problems | 3 | 40.3% | 25 |
| osu! klikin sircles | Contest Problems | 3 | 52.2% | 19 |