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Contest news.
Clear context.
Updates, explainers and preparation notes for the USA Computing Olympiad — organized for students and families who want the important signal without the noise.
Latest dispatches
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2022 USACO Silver January Contest Problems
Official problem statements for this contest (PDF): Problem 1. Searching for Soulmates — PDF Problem 2. Cow Frisbee — PDF Problem 3. Cereal 2 — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Platinum January Contest Problems
Official problem statements for this contest (PDF): Problem 1. Minimizing Haybales — PDF Problem 2. Counting Haybales — PDF Problem 3. Multiple Choice Test — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Gold January Contest Problems
Official problem statements for this contest (PDF): Problem 1. Drought — PDF Problem 2. Farm Updates — PDF Problem 3. Tests for Haybales — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Bronze January Contest Problems
Official problem statements for this contest (PDF): Problem 1. Herdle — PDF Problem 2. Non-Transitive Dice — PDF Problem 3. Drought — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Silver February Contest Problems
Official problem statements for this contest (PDF): Problem 1. Redistributing Gifts — PDF Problem 2. Robot Instructions — PDF Problem 3. Email Filing — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Platinum February Contest Problems
Official problem statements for this contest (PDF): Problem 1. Paint by Rectangles — PDF Problem 2. Sleeping in Class — PDF Problem 3. Phone Numbers — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Gold February Contest Problems
Official problem statements for this contest (PDF): Problem 1. Redistributing Gifts — PDF Problem 2. Cow Camp — PDF Problem 3. Moo Network — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Bronze February Contest Problems
Official problem statements for this contest (PDF): Problem 1. Sleeping in Class — PDF Problem 2. Photoshoot 2 — PDF Problem 3. Blocks — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Silver December Contest Problems
Official problem statements for this contest (PDF): Problem 1. Barn Tree — PDF Problem 2. Circular Barn — PDF Problem 3. Range Reconstruction — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.
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2022 USACO Platinum December Contest Problems
Official problem statements for this contest (PDF): Problem 1. Breakdown — PDF Problem 2. Making Friends — PDF Problem 3. Palindromes — PDF New here? See how to practise with past contests, or browse the full official archive on usaco.org.