| Title | Score | Topic | Company | Difficulty | Success This is the total number of accepted submissions divided by the total number of submissions. | |
|---|---|---|---|---|---|---|
| Employee Salaries | 70 | sql | Locked | Medium | 17% | |
| First to Six | 32 | probability | Locked | Medium | N/A | |
| Closest SAT Scores | 38 | sql | Locked | Medium | 24% | |
| Comments Histogram | 78 | sql | Locked | Medium | 24% | |
| Subscription Overlap | 33 | sql | Locked | Hard | 24% | |
| 2nd Highest Salary | 66 | sql | Locked | Easy | 34% | |
| Found Item | 19 | probability | Locked | Easy | N/A | |
| First Touch Attribution | 48 | sql | Locked | Hard | 22% | |
| Post Success | 23 | sql | Locked | Medium | 23% | |
| Rolling Bank Transactions | 29 | sql | Locked | Hard | 19% | |
| Decreasing Comments | 32 | product metrics | Locked | Easy | N/A | |
| Upsell Transactions | 19 | sql | Locked | Medium | 32% | |
| Distribution of 2X - Y | 16 | statistics | Locked | Medium | N/A | |
| Empty Neighborhoods | 37 | sql | Locked | Easy | 44% | |
| 7 Day Streak | 8 | sql | Locked | Medium | 7% | |
| Cumulative Reset | 24 | sql | Locked | Hard | 19% | |
| Last Transaction | 18 | sql | Locked | Easy | 29% | |
| Find Bigrams | 23 | python | Locked | Easy | 37% | |
| Raining in Seattle | 31 | probability | Locked | Medium | N/A | |
| Compute Deviation | 26 | python | Locked | Medium | 29% |
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