Browse problems by topic and difficulty. 3,930 problems indexed.
| Title | Difficulty | ||
|---|---|---|---|
| Minimum Adjacent Swaps to Alternate Parity | Medium | Solve |
| Find Maximum Area of a Triangle | Medium | Solve |
| Count Prime-Gap Balanced Subarrays | Medium | Solve |
| Logger Rate Limiter | Easy | Solve |
| Kth Smallest Path XOR Sum | Hard | Solve |
| Check if Any Element Has Prime Frequency | Easy | Solve |
| Inverse Coin Change | Medium | Solve |
| Minimum Increments to Equalize Leaf Paths | Medium | Solve |
| Minimum Time to Transport All Individuals | Hard | Solve |
| Once Twice | Medium | Solve |
| Minimum Cost Path with Alternating Directions I | Medium | Solve |
| Partition String | Medium | Solve |
| Longest Common Prefix Between Adjacent Strings After Removals | Medium | Solve |
| Partition Array to Minimize XOR | Medium | Solve |
| Valid Sudoku | Medium | Solve |
| Sort Transformed Array | Medium | Solve |
| Maximize Spanning Tree Stability with Upgrades | Hard | Solve |
| Find Drivers with Improved Fuel Efficiency | Medium | Solve |
| Hexadecimal and Hexatrigesimal Conversion | Easy | Solve |
| Minimum Cost Path with Alternating Directions II | Medium | Solve |
| Minimum Time to Reach Destination in Directed Graph | Medium | Solve |
| Minimum Stability Factor of Array | Hard | Solve |
| Coupon Code Validator | Easy | Solve |
| Power Grid Maintenance | Medium | Solve |
| Minimum Time for K Connected Components | Medium | Solve |