Virtual contest · solo
Codeforces Round 690 (Div. 3)
7 problems · duration 2:00:00
Hit Start contest to begin the countdown. Problems below open in a new tab when you click them — close the tab when you're finished with a problem. Click ✓ next to a problem when you AC'd it on cf-mirror or CF.
| Idx | Name | Rating | Status |
|---|---|---|---|
| A | Favorite Sequence | 800 | |
| B | Last Year's Substring | 800 | |
| C | Unique Number | 900 | |
| D | Add to Neighbour and Remove | 1400 | |
| E1 | Close Tuples (easy version) | 1500 | |
| E2 | Close Tuples (hard version) | 1700 | |
| F | The Treasure of The Segments | 1800 |