Contest 2 Announcement

Welcome to Contest 2!

USAMO Guide's second official contest is live, and you can register now.

Whether it's your first contest or your fiftieth, this one's built to be low-pressure: log in when it works for you, solve what you can, and see where you land.

It runs Codeforces-style, with the quality-of-life features you'd expect. The essentials:

• A 24-hour window, so you can start whenever fits your schedule.
• 90 minutes to solve 18 problems once you begin.
• Difficulties from 1000 to 2300, with approachable problems for beginners and harder ones for stronger competitors.
• Rated for participants below 1600.

Scoring

Problems are labeled A through R and are worth points proportional to their position in the problem set:

$\text{Points for problem } k = 100k$

So problem A is worth 100 points, B is worth 200, and so on up to R (problem 18) at 1800 points. The maximum possible score is

$\sum_{k=1}^{18} 100k = 100 \cdot \frac{18 \cdot 19}{2} = 17{}100 \text{ points.}$

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We'll run these regularly. If you competed in Contest 1, this is where you'll see your progress. If it's your first, this sets your baseline for the contests to come. Either way, usamoguide.com has resources to help you prepare.

Good luck, and we'll see you on the leaderboard.