USACO 2012 US Open, Gold Division

1

Tied Down
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2

Bookshelf
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3

Balanced Cow Subsets
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USACO 2012 US Open, Silver Division

1

Unlocking Blocks (Silver)
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2

Bookshelf (Silver)
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3

Running Laps
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USACO 2012 US Open, Bronze Division

1

Cows in a Row
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2

Three Lines
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3

Islands
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4

Unlocking Blocks
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