Logic puzzle /g/ You have an x by y matrix. If you have a vertical line one cell wide, and a horizontal line once cell wide (pictured), how many times does each element get hit by a line if the red dot moves through each cell in the matrix once?

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Anonymous Tue Sep 13 23:34:55 2011 No.3734756 [Reply] [Original]

Logic puzzle /g/

You have an x by y matrix.

If you have a vertical line one cell wide, and a horizontal line once cell wide (pictured), how many times does each element get hit by a line if the red dot moves through each cell in the matrix once?

>>	Anonymous Tue Sep 13 23:38:55 2011 No.3734786 xy times?

>>	Anonymous Tue Sep 13 23:45:55 2011 No.3734833 x + y - 1

>>	Skunkworks !e1337Hykks Wed Sep 14 00:03:55 2011 No.3734949 Worked it out on a 3x3 and 4x4, x+y-1 is right

>>	Anonymous Wed Sep 14 00:14:55 2011 No.3735002 x + y - 1, should be pretty straightforward to prove

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