| ✔️ | # | Title | My Solution | Notes | Difficulty |
|---|---|---|---|---|---|
| ✔️ | 001 | Arrays && Linked Lists | Ruby | Wiki | Easy |
| ✔️ | 002 | Stacks | Ruby | Wiki | Easy |
| ✔️ | 003 | Queues | Ruby | Wiki | Easy |
| ✔️ | 004 | Min Stacks | Ruby | Easy | |
| ✔️ | 004 | Sliding Maximum | Ruby | Easy | |
| ✔️ | 005 | Balanced Brackets | Ruby | Easy | |
| ✔️ | 005 | Transposition | Ruby | Easy |