| # | Problem | Language | Link | Date |
|---|---|---|---|---|
| 166 | Page Rank as Eigenvector | Ruby | view | Jun 10 2017 |
| 220 | Neural Network Training | Ruby | view | Aug 19 2020 |
| 232 | Shift Register Randomizer | Ruby | view | May 4 2021 |
| 244 | Introducing SQL | Python | view | Feb 14 2022 |
| 276 | Lucky Pairs | Python | view | Sep 1 2023 |