Browse problems by topic and difficulty. 3,930 problems indexed.
| Title | Difficulty | ||
|---|---|---|---|
| Minimum Operations to Maximize Last Elements in Arrays | Medium | Solve |
| Maximum Strong Pair XOR II | Hard | Solve |
| Number of Equal Numbers Blocks | Medium | Solve |
| Make Three Strings Equal | Easy | Solve |
| Separate Black and White Balls | Medium | Solve |
| Maximum Xor Product | Medium | Solve |
| Flip Game II | Medium | Solve |
| Find Building Where Alice and Bob Can Meet | Hard | Solve |
| Maximum GCD-Sum of a Subarray | Hard | Solve |
| Find Words Containing Character | Easy | Solve |
| Maximize Area of Square Hole in Grid | Medium | Solve |
| Minimum Number of Coins for Fruits | Medium | Solve |
| Find Maximum Non-decreasing Array Length | Hard | Solve |
| Matrix Similarity After Cyclic Shifts | Easy | Solve |
| Count Beautiful Substrings I | Medium | Solve |
| Make Lexicographically Smallest Array by Swapping Elements | Medium | Solve |
| Count Beautiful Substrings II | Hard | Solve |
| Find Median from Data Stream | Hard | Solve |
| Number of Divisible Substrings | Medium | Solve |
| Find the Peaks | Easy | Solve |
| Minimum Number of Coins to be Added | Medium | Solve |
| Count Complete Substrings | Hard | Solve |
| Count the Number of Infection Sequences | Hard | Solve |
| Number of Same-End Substrings | Medium | Solve |
| Find Common Elements Between Two Arrays | Easy | Solve |