Comcast
6 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1. Two Sum | Easy | 100% | TopicsArrayHash Table |
| 121. Best Time to Buy and Sell Stock | Easy | 83.3% | TopicsArrayDynamic Programming |
| 125. Valid Palindrome | Easy | 83.3% | TopicsTwo PointersString |
| 3. Longest Substring Without Repeating Characters | Medium | 73.5% | TopicsHash TableStringSliding Window |
| 200. Number of Islands | Medium | 73.5% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 20. Valid Parentheses | Easy | 73.5% | TopicsStringStackBracket Sequences |
