Browse problems by topic and difficulty. 3,930 problems indexed.
| Title | Difficulty | ||
|---|---|---|---|
| Number of Alternating XOR Partitions | Medium | Solve |
| Minimum Edge Toggles on a Tree | Hard | Solve |
| Vowel-Consonant Score | Easy | Solve |
| Maximum Capacity Within Budget | Medium | Solve |
| Design Auction System | Medium | Solve |
| Lexicographically Smallest String After Deleting Duplicate Characters | Hard | Solve |
| Good Indices in a Digit String | Medium | Solve |
| Minimum Prefix Removal to Make Array Strictly Increasing | Medium | Solve |
| Rotate Non Negative Elements | Medium | Solve |
| Linked List Random Node | Medium | Solve |
| Pythagorean Distance Nodes in a Tree | Medium | Solve |
| Find Nth Smallest Integer With K One Bits | Hard | Solve |
| Design Order Management System | Medium | Solve |
| Reverse Letters Then Special Characters in a String | Easy | Solve |
| Minimum K to Reduce Array Within Limit | Medium | Solve |
| Longest Strictly Increasing Subsequence With Non-Zero Bitwise AND | Medium | Solve |
| Minimum Partition Score | Hard | Solve |
| Count Monobit Integers | Easy | Solve |
| Final Element After Subarray Deletions | Medium | Solve |
| Design Ride Sharing System | Medium | Solve |
| Ransom Note | Easy | Solve |
| Longest Alternating Subarray After Removing At Most One Element | Hard | Solve |
| Median of a Binary Search Tree Level | Medium | Solve |
| Find Users with Persistent Behavior Patterns | Hard | Solve |
| Count Dominant Indices | Easy | Solve |