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Hot problems
| Problem | Category | Points | AC % | Users | |
|---|---|---|---|---|---|
| Easy splitting | Uncategorized | 100p | 1.4% | 3 | |
| Omar and Circles | Uncategorized | 100p | 12.3% | 21 | |
| Contest strategy | Uncategorized | 100p | 7.1% | 24 | |
| Xor Sort | Uncategorized | 100p | 10.0% | 3 | |
| Fun Tour | Uncategorized | 100p | 5.3% | 1 | |
| Painting Walls | Uncategorized | 100p | 6.1% | 2 | |
| Swapping cities | Uncategorized | 100p | 3.8% | 1 | |
| Hexagonal Territory | ioi | 100p | 10.0% | 1 | |
| Rainforest Jumps | ioi | 100p | 6.9% | 2 | |
| Road Closures | ioi | 100p | 1.8% | 1 | |
| A Plus B | Uncategorized | 5p | 27.7% | 793 | |
| Going to FlatLand | Uncategorized | 35 | 7.6% | 24 | |
| Merge them up | Interview questions | 30 | 11.8% | 135 | |
| Coin change | Educative | 15 | 29.1% | 75 | |
| Count paths | Educative | 15 | 13.1% | 71 | |
| Fibonacci queries | Educative | 15 | 7.1% | 110 | |
| Maximum subarray | Educative | 15 | 27.5% | 162 | |
| Knapsack | Educative | 15 | 16.1% | 34 | |
| Longest Increasing Subsequence | Educative | 15 | 29.1% | 82 | |
| Constructing tetrahedrons | Uncategorized | 25p | 13.8% | 38 | |
| Find components | Uncategorized | 30p | 16.2% | 16 | |
| Azuz's Anagram | Uncategorized | 10 | 14.3% | 163 | |
| High school mathematics | Uncategorized | 30 | 14.2% | 110 | |
| Houda and Weird Auction | Uncategorized | 25 | 17.3% | 29 | |
| Houda Playing Pocker | Uncategorized | 20 | 22.8% | 100 | |
| Last Digit! | Uncategorized | 10 | 16.8% | 344 | |
| Oola and the Rabbits | Uncategorized | 25 | 16.1% | 36 | |
| Rotten Berries | Uncategorized | 25 | 26.9% | 54 | |
| Stable Zeroing | Uncategorized | 20 | 21.1% | 186 | |
| Tree Puzzle | Uncategorized | 25 | 35.4% | 53 | |
| Unique SubString | Uncategorized | 30 | 15.1% | 22 | |
| 24/7 cafe | Uncategorized | 25 | 12.6% | 13 | |
| Diaa was Live! | Uncategorized | 25 | 9.0% | 133 | |
| Corona Virus Alert | Uncategorized | 5 | 32.6% | 447 | |
| Corona Virus Spread | Uncategorized | 15 | 24.0% | 170 | |
| Covid Statistics | Uncategorized | 25 | 11.4% | 35 | |
| Magical Frog | Uncategorized | 35 | 9.6% | 18 | |
| Re: Count The Digits | Uncategorized | 20 | 15.8% | 56 | |
| Separate them | Uncategorized | 40 | 10.6% | 25 | |
| Tadamoncovid | Uncategorized | 35 | 12.2% | 45 | |
| Unfinished Artwork | Uncategorized | 25 | 21.0% | 89 | |
| Find solutions | Educative | 25 | 19.0% | 48 | |
| Subset sum | Educative | 20 | 18.0% | 66 | |
| The travelling salesman problem | Educative | 20 | 20.7% | 21 | |
| Islands | Interview questions | 25 | 18.1% | 31 | |
| Min amplitude | Interview questions | 20 | 11.2% | 25 | |
| Repeated digits | Interview questions | 20 | 12.4% | 101 | |
| Stairs numbers | Interview questions | 35 | 12.2% | 28 | |
| IOI 2017 - Books | ioi | 0p | 8.8% | 1 | |
| IOI 2017 - Train | ioi | 0p | 13.6% | 2 |