Contests
A few problems, a fixed window, and everybody solving them at the same time. Your rating moves only when a contest is published, never from practice.
None scheduled yet. When one is, it appears here, and you can register before it opens.
How a contest works
- 1
Register before it opens
Registration closes when the window starts. You can leave at any point; nothing is held against you for not finishing.
- 2
Solve inside the window
A few problems, a fixed time, everybody on the same set. Partial solutions count: each test case you pass is scored.
- 3
Rating moves once
Only a published contest changes your rating. Practice never does, so there is no reason to avoid a hard problem outside one.
Until the first one
Contest problems come from the same bank you practise on, so the preparation is the practice. Working through a topic in order is the thing that makes a timed window feel survivable.