| 1. Put a ring on it. | BasicsData Structures Google | Easy 1 | 54% 389 / 718 |
| 2. Add to 13 | | Easy 1 | 69% 259 / 376 |
| 3. It's over for you. (if you can't do this) | | Easy 1.5 | 21% 158 / 751 |
| 4. Know your limits. (Easy version) | Data StructuresNetworking +1 Akuna Capital | Easy 1.5 | 29% 108 / 367 |
| 5. Crafter | | Easy+ 2 | 10% 36 / 359 |
| 6. CorrelationTTV (Easy version) | | Easy+ 2 | 19% 41 / 220 |
| 7. Know your limits. (Hard version) | BasicsNetworking +1 Akuna Capital | Easy+ 2 | 31% 62 / 197 |
| 8. burn this image into the retina of my eye | BasicsMachine Learning Meta | Easy+ 2 | 82% 45 / 55 |
| 9. Pixel Budget | AlgorithmsBasics +1 Anthropic | Easy+ 2.5 | 74% 28 / 38 |
| 10. Ok Garmin, save video | BasicsData Structures Amazon | Easy+ 2.5 | 50% 41 / 82 |
| 11. Ouroboros | | Easy+ 2.5 | 40% 34 / 84 |
| 12. Stronger Together | Machine LearningMath +1 Meta | Normal 3 | 78% 18 / 23 |
| 13. Let's Connect! (Easy version) | BasicsGame Theory Citadel | Normal 3 | 73% 16 / 22 |
| 14. The Answer to the Ultimate Question of Life, the Universe, and Everything | Memory ManagementBasics HRT | Normal 3 | 14% 67 / 466 |
| 15. Vector (Easy version) | Data StructuresBasics Squarepoint | Normal 3 | 11% 22 / 202 |
| 16. Down the Rabbit-Hole | Machine LearningBasics +1 Jane Street | Normal 3 | 53% 19 / 36 |
| 17. Time-Windowed Join | Data StructuresBasics Google | Normal 3.5 | 52% 13 / 25 |
| 18. The Endless Expanse Project 0/1 | | Normal 3.5 | 50% 3 / 6 |
| 19. The Amazing Race 1 | | Normal 3.5 | 13% 12 / 91 |
| 20. You're naive. | | Normal+ 4 | 37% 7 / 19 |
| 21. Escape the Matrix | Data StructuresMath +2 Voleon | Normal+ 4 | 25% 13 / 51 |
| 22. Omniscient Reader's Viewpoint | | Normal+ 4 | 50% 7 / 14 |
| 23. We live in a simulation. | | Normal+ 4 | 88% 14 / 16 |
| 24. CorrelationTTV (Hard version) | | Normal+ 4 | 7% 10 / 142 |
| 25. One step forward, two steps back | MathMachine Learning +1 Anthropic | Normal+ 4 | 83% 5 / 6 |
| 26. Multidimensional Virtual Arcade | Game TheoryData Structures +1 Citadel | Normal+ 4.5 | 4% 4 / 98 |
| 27. Hashring | Data StructuresBasics Anthropic | Normal+ 4.5 | 13% 7 / 52 |
| 28. We were all SYNners. | | Hard 5 | 22% 8 / 36 |
| 29. One, Two, Skip a few... | Memory ManagementData Structures Optiver | Hard 5 | 36% 15 / 42 |
| 30. Do you think he clicks? | | Hard 5 | 33% 9 / 27 |
| 31. Knock on wood | Operating SystemsConcurrency +1 Nvidia | Hard 5 | 15% 12 / 78 |
| 32. Design an in-memory file system | Design PatternsMemory Management +1 Meta | Hard 5.5 | 17% 7 / 42 |
| 33. Pardon my... | Memory ManagementOperating Systems +1 | Hard 5.5 | 29% 5 / 17 |
| 34. Return by Death | | Hard 5.5 | 100% 4 / 4 |
| 35. Porphyrophobia | Data StructuresNetworking +1 Meta | Harder 6 | 17% 8 / 48 |
| 36. I'm single. | Design PatternsData Structures +2 Akuna Capital | Harder 6 | 13% 15 / 112 |
| 37. Let's Connect! (Hard version) | | Harder 6 | 7% 6 / 82 |
| 38. cant erase u | Memory ManagementDesign Patterns | Harder 6 | 13% 4 / 31 |
| 39. The NOexistenceN of you AND me | Data StructuresDesign Patterns +1 Millennium | Insane 7 | 100% 5 / 5 |
| 40. Return to Sender | | Insane 7.5 | 21% 6 / 29 |
| 41. Vector (Hard Version) | Data StructuresMemory Management Squarepoint | Insane 7.5 | 4% 6 / 141 |
| 42. Pool party! | Operating SystemsData Structures +2 Akuna Capital | Expert 8 | 7% 7 / 102 |
| 43. My little tokenizer can't be this greedy?! | AlgorithmsData Structures +1 | Master 9 | 33% 2 / 6 |
| 44. Consumerism (Easy version) | ConcurrencyOperating Systems +2 | Master 9 | 22% 7 / 32 |
| 45. Stacked up (Easy Version) | Operating SystemsConcurrency +1 | Master 9.5 | 16% 4 / 25 |
| 46. Consumerism (Hard version) | ConcurrencyData Structures +3 | Grandmaster 10 | 30% 9 / 30 |
| 47. Stacked up (Hard Version) | Data StructuresConcurrency +2 | Glitched 11 | 45% 5 / 11 |