20 curated coding interview questions directly asked in Wayfair technical rounds, sorted by frequency with recency and difficulty diagnostics.
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 1014 | Best Sightseeing Pair | Medium | Core DSA | Implementation / Reasoning | 62.7% | 100.0% | all |
| 1244 | Design A Leaderboard | Medium | Design | Data Structure Design | 68.1% | 100.0% | all |
| 1604 | Alert Using Same Key-Card Three or More Times in a One Hour Period | Medium | Core DSA | Implementation / Reasoning | 46.3% | 100.0% | all |
| 1189 | Maximum Number of Balloons | Easy | Arrays | Sorting / Prefix / Scan | 60.2% | 100.0% | all |
| 1957 | Delete Characters to Make Fancy String | Easy | Strings | Hashing / Sliding Window | 74.1% | 100.0% | all |
| 2139 | Minimum Moves to Reach Target Score | Medium | Arrays | Sorting / Prefix / Scan | 52.4% | 100.0% | all |
| 1405 | Longest Happy String | Medium | Strings | Hashing / Sliding Window | 65.5% | 100.0% | all |
| 1895 | Largest Magic Square | Medium | Core DSA | Implementation / Reasoning | 75.2% | 100.0% | all |
| 1194 | Tournament Winners | Hard | Core DSA | Implementation / Reasoning | 50.1% | 100.0% | all |
| 1212 | Team Scores in Football Tournament | Medium | Core DSA | Implementation / Reasoning | 55.8% | 100.0% | all |
| 2950 | Number of Divisible Substrings | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 74.6% | 87.5% | all |
| 125 | Valid Palindrome | Easy | Strings | Hashing / Sliding Window | 53.3% | 62.5% | all |
| 152 | Maximum Product Subarray | Medium | Arrays | Sorting / Prefix / Scan | 36.4% | 62.5% | all |
| 415 | Add Strings | Easy | Strings | Hashing / Sliding Window | 52.2% | 62.5% | all |
| 49 | Group Anagrams | Medium | Strings | Hashing / Sliding Window | 72.6% | 62.5% | all |
| 780 | Reaching Points | Hard | Core DSA | Implementation / Reasoning | 34.4% | 62.5% | all |
| 844 | Backspace String Compare | Easy | Strings | Hashing / Sliding Window | 49.9% | 62.5% | all |
| 1204 | Last Person to Fit in the Bus | Medium | Core DSA | Implementation / Reasoning | 69.3% | 62.5% | all |
| 239 | Sliding Window Maximum | Hard | Arrays | Sorting / Prefix / Scan; Sliding Window | 48.8% | 62.5% | all |
| 2380 | Time Needed to Rearrange a Binary String | Medium | Strings | Hashing / Sliding Window | 53.0% | 62.5% | all |