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6 hours ago vote accept Kiarash Koopal
8 hours ago history became hot network question
11 hours ago history edited RobPratt
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11 hours ago history edited Z. A. K.
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14 hours ago answer added Mike Earnest timeline score: 7
16 hours ago comment added Henry When you say "two parallel $1×1×n$ columns (i.e., blocks of n unit cubes aligned in the same direction)" you presumably could have said "two $1×1×n$ columns or two $1×n×1$ columns or two $n×1×1$ columns"
16 hours ago history asked Kiarash Koopal CC BY-SA 4.0