UBS
4 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 3067. Count Pairs of Connectable Servers in a Weighted Tree Network | Medium | 100% | TopicsArrayTreeDepth-First Search |
| 1268. Search Suggestions System | Medium | 84.6% | TopicsArrayStringBinary SearchTrieSortingHeap (Priority Queue) |
| 49. Group Anagrams | Medium | 78.2% | TopicsArrayHash TableStringSorting |
| 20. Valid Parentheses | Easy | 69.2% | TopicsStringStackBracket Sequences |
