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2021 AP CSA FRQ #4B : scoring
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Scorer's Name (optional)
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Point 1 : Compares an item from array2D with 0
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yes
no
Point 2: Accesses every item from row r of 2D array (no bounds errors)
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yes
no
Point 3: Returns true if and only if row contains nozeros
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yes
no
Other:
Point 4: Calls numNonZeroRows and isNonZeroRow
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yes
no
Point 5: Identifies rows with no zeros (in the context of an if)
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yes
no
Point 6: Declares and creates a new 2D array of the correct size
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yes
no
Point 7: Maintains an index in the new array
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yes
no
Point 8: Traverses all necessary elements of array2D (no bounds errors)
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yes
no
Point 9: Copies all and only rows identified as having no zero elements into the new array
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yes
no
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