Virtual contest · solo
Codeforces Round 421 (Div. 1)
4 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 |
|---|---|---|---|
| B | Mister B and PR Shifts | 1900 | |
| C | Mister B and Beacons on Field | 2900 | |
| D | Mister B and Astronomers | 2900 | |
| E | Mister B and Flight to the Moon | 2800 |