Virtual contest · solo
Educational Codeforces Round 20
7 problems · duration 2:15:00
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 | Maximal Binary Matrix | 1400 | |
| B | Distances to Zero | 1200 | |
| C | Maximal GCD | 1900 | |
| D | Magazine Ad | 1900 | |
| E | Roma and Poker | 2000 | |
| F | Coprime Subsequences | 2000 | |
| G | Periodic RMQ Problem | 2300 |