FactSet
6 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Remove Duplicate Letters | Medium | 100% | TopicsStringStackGreedyMonotonic Stack |
| 1081. Smallest Subsequence of Distinct Characters | Medium | 97.2% | TopicsStringStackGreedyMonotonic Stack |
| 1209. Remove All Adjacent Duplicates in String II | Medium | 97.2% | TopicsStringStack |
| 49. Group Anagrams | Medium | 64.8% | TopicsArrayHash TableStringSorting |
| 121. Best Time to Buy and Sell Stock | Easy | 64.8% | TopicsArrayDynamic Programming |
| 1010. Pairs of Songs With Total Durations Divisible by 60 | Medium | 64.8% | TopicsArrayHash TableCounting |
