Browse problems by topic and difficulty. 3,930 problems indexed.
| Title | Difficulty | ||
|---|---|---|---|
| Find Minimum Diameter After Merging Two Trees | Hard | Solve |
| Bitwise User Permissions Analysis | Medium | Solve |
| Maximum Array Hopping Score I | Medium | Solve |
| Alternating Groups I | Easy | Solve |
| Maximum Points After Enemy Battles | Medium | Solve |
| Alternating Groups II | Medium | Solve |
| Number of Subarrays With AND Value of K | Hard | Solve |
| Create Maximum Number | Hard | Solve |
| Find the Encrypted String | Easy | Solve |
| Generate Binary Strings Without Adjacent Zeros | Medium | Solve |
| Count Submatrices With Equal Frequency of X and Y | Medium | Solve |
| Construct String with Minimum Cost | Hard | Solve |
| Year on Year Growth Rate | Hard | Solve |
| Count Triplets with Even XOR Set Bits II | Medium | Solve |
| Lexicographically Smallest String After a Swap | Easy | Solve |
| Delete Nodes From Linked List Present in Array | Medium | Solve |
| Minimum Cost for Cutting Cake I | Medium | Solve |
| Minimum Cost for Cutting Cake II | Hard | Solve |
| Coin Change | Medium | Solve |
| Odd and Even Transactions | Medium | Solve |
| Maximum Array Hopping Score II | Medium | Solve |
| Find the Winning Player in Coin Game | Easy | Solve |
| Minimum Length of String After Operations | Medium | Solve |
| Minimum Array Changes to Make Differences Equal | Medium | Solve |
| Maximum Score From Grid Operations | Hard | Solve |