Browse the full problem set, protect your daily streak, and keep building depth.
| Status | Problem | Acceptance | Difficulty | Forge Coins | XP | Save to vault |
|---|---|---|---|---|---|---|
| 1. Product Price PairHash TableNovice10 FC+7 XP | 64.6% | Novice | 10 | +7 XP | ||
| 2. Package Manifest VerificationHash Table · StringNovice10 FC+7 XP | 82.6% | Novice | 10 | +7 XP | ||
| 3. Longest Stable Battle FormationArray · Hash TableHunter20 FC+14 XP | 70.0% | Hunter | 20 | +14 XP | ||
| 4. Cybersecurity Log Pattern DetectionTwo pointers · StringHunter20 FC+14 XP | 35.5% | Hunter | 20 | +14 XP | ||
| 5. Missing Employee IDArray · In-Place AlgorithmHunter20 FC+14 XP | 62.5% | Hunter | 20 | +14 XP | ||
| 6. Airline Ticket Reselling: Fare Opportunity PlanningDynamic Programming · ArrayBeast30 FC+21 XP | 54.5% | Beast | 30 | +21 XP | ||
| 7. Kingdom Battle: Capture the Maximum Number of VillagesArray · Sliding WindowBeast30 FC+21 XP | 77.8% | Beast | 30 | +21 XP | ||
| 8. Battle for the KingdomOptimization · Dynamic ProgrammingHunter20 FC+14 XP | 66.7% | Hunter | 20 | +14 XP | ||
| 9. Insert Position in a Spacecraft Cargo ListArray · Binary SearchNovice10 FC+7 XP | 90.0% | Novice | 10 | +7 XP | ||
| 10. Space Mission Launch SequenceGraph · Topological SortHunter20 FC+14 XP | 55.0% | Hunter | 20 | +14 XP | ||
| 11. Alien DNA TransformationString · Dynamic ProgrammingBeast30 FC+21 XP | 61.5% | Beast | 30 | +21 XP | ||
| 12. Ancient Vault CodeSimulation · Number ManipulationNovice10 FC+7 XP | 40.0% | Novice | 10 | +7 XP | ||
| 13. Ancient Vault Code II: The Palindrome QuestArray · MathHunter20 FC+14 XP | 40.0% | Hunter | 20 | +14 XP | ||
| 14. Team Formation PossibilitiesArray · BacktrackingHunter20 FC+14 XP | 16.7% | Hunter | 20 | +14 XP | ||
| 15. The Digital Alchemy ExperimentMath · Hash SetNovice10 FC+7 XP | 100.0% | Novice | 10 | +7 XP | ||
| 16. Playlist RemixArray · SimulationHunter20 FC+14 XP | 83.3% | Hunter | 20 | +14 XP | ||
| 17. Assembly Line InspectorString · Hash MapBeast30 FC+21 XP | 41.7% | Beast | 30 | +21 XP | ||
| 18. Fruit BasketFrequency Counting · Two PointersBeast30 FC+21 XP | 75.0% | Beast | 30 | +21 XP | ||
| 19. Garden PathImplementation · Boundary TraversalHunter20 FC+14 XP | 87.5% | Hunter | 20 | +14 XP | ||
| 20. Ancient Roman InscriptionSimulation · MathNovice10 FC+7 XP | 70.0% | Novice | 10 | +7 XP | ||
| 21. Ancient Clock ReadingImplementation · SimulationNovice10 FC+7 XP | 100.0% | Novice | 10 | +7 XP | ||
| 22. Bank Cheque WriterDivide and Conquer · RecursionBeast30 FC+21 XP | 100.0% | Beast | 30 | +21 XP | ||
| 23. Factory PackagingBit Manipulation · MathHunter20 FC+14 XP | 100.0% | Hunter | 20 | +14 XP | ||
| 24. Rabbit Path: 1, 3, or 5 JumpsDynamic Programming · RecursionNovice10 FC+7 XP | 13.3% | Novice | 10 | +7 XP | ||
| 25. Perfect Coin SquareBinary Search · MathNovice10 FC+7 XP | 60.0% | Novice | 10 | +7 XP |
