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Hot problems
| Problem | Category ▴ | Points | AC % | Users |
|---|---|---|---|---|
| Valentine's Day '19 J3 - Love! | Contest Problems | 7p | 15.5% | 9 |
| Cinematography | Contest Problems | 3 | 34.4% | 28 |
| Encryption by Reversal | Contest Problems | 7 | 24.6% | 10 |
| Lady of the Lake | Contest Problems | 3 | 14.1% | 18 |
| Backwards Tree | Contest Problems | 10 | 50.0% | 2 |
| Theory of Relativity | Contest Problems | 5 | 33.3% | 12 |
| Jonathan Sumabat 9.5 | Contest Problems | 1 | 6.6% | 13 |
| Hackathon Present 5 | Contest Problems | 1 | 55.8% | 25 |
| Hockey Scores | Contest Problems | 12 | 22.2% | 1 |
| GOOSE | Contest Problems | 20 | 21.1% | 2 |
| CCC '22 S2 - Good Groups | Contest Problems | 5 | 40.7% | 7 |
| CCC '22 J2 - Fergusonball Ratings | Contest Problems | 5 | 59.4% | 42 |
| CCC '22 J3 - Harp Tuning | Contest Problems | 5 | 47.3% | 27 |
| CCC '06 J1 - Canadian Calorie Counting | Contest Problems | 3 | 24.6% | 14 |
| CCC '15 J1 - Special Day | Contest Problems | 3 | 50.0% | 16 |
| CCC '15 J2 - Happy or Sad | Contest Problems | 3 | 46.0% | 24 |
| Problem J1: Who is in the middle? | Contest Problems | 3 | 72.2% | 13 |
| CCC '19 J1 - Winning Score | Contest Problems | 3 | 66.7% | 23 |
| Three Cups | Contest Problems | 3 | 50.0% | 11 |
| Data Plan | Contest Problems | 3 | 64.3% | 9 |
| COCI '18 Contest 3 #1 Magnus | Contest Problems | 5 | 68.4% | 7 |
| WC '17 Contest 3 J3 - Uncrackable | Contest Problems | 5 | 66.7% | 4 |
| TSS '22 CC P1 - Mud Puddles | Contest Problems | 3 | 54.3% | 28 |
| TSS '22 CC P2 - River Crossing | Contest Problems | 5 | 16.1% | 11 |
| TSS '22 CC P4 - Ancient Castle Ruins | Contest Problems | 10p | 27.5% | 6 |
| TSS '22 CC P3 - Treasure Hunt in the Jungle | Contest Problems | 7 | 36.7% | 12 |
| String Searching | Contest Problems | 3 | 28.6% | 20 |
| Binary Things | Contest Problems | 5 | 33.8% | 17 |
| CCC '11 S5 - Switch | Contest Problems | 12p | 30.0% | 3 |
| Domino Effect | Contest Problems | 10 | 8.3% | 6 |
| CCC '07 J3 - Deal or No Deal Calculator | Contest Problems | 3 | 38.9% | 14 |
| Frog 2 | Contest Problems | 7 | 42.1% | 8 |
| CCC '23 J1 - Deliv-e-droid | Contest Problems | 3p | 80.0% | 8 |
| CCC '23 J2 - Chili Peppers | Contest Problems | 3p | 84.6% | 10 |
| CCC '23 J3 - Special Event | Contest Problems | 5p | 53.8% | 7 |
| CCC '23 S1 - Trianglane | Contest Problems | 5p | 76.9% | 10 |
| CCC '23 J5 - CCC Word Hunt | Contest Problems | 10p | 42.9% | 6 |
| CCC '23 S2 - Symmetric Mountains | Contest Problems | 7p | 50.0% | 7 |
| CCC '23 S3 - Palindromic Poster | Contest Problems | 10p | 54.5% | 4 |
| CCC '23 S4 - Minimum Cost Roads | Contest Problems | 15p | 100.0% | 3 |
| USACO 2023 February Silver P1 - Bakery | Contest Problems | 12p | 0.0% | 0 |
| Matrix Test | Contest Problems | 5 | 33.3% | 8 |
| CCC '18 J5 - Choose your own path | Contest Problems | 7p | 18.4% | 5 |
| TCCC '24 Feb P2 - Mountain Misfortune | Contest Problems | 3 | 42.4% | 19 |
| CCC '24 J1 - Conveyor Belt Sushi | Contest Problems | 3p | 75.0% | 6 |
| CCC '24 J2 - Dusa And The Yobis | Contest Problems | 3p | 75.0% | 6 |
| CCC '24 J3 - Bronze | Contest Problems | 5p | 100.0% | 4 |
| CCC '24 J4 - Troublesome Keys | Contest Problems | 5p | 75.0% | 3 |
| CCC '24 J5 - Harvest Waterloo | Contest Problems | 7p | 63.6% | 6 |
| CCC '24 S1 - Hat Circle | Contest Problems | 5p | 85.7% | 5 |