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added 41 characters in body

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edited Feb 19, 2024 at 19:22

106.7k
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MATL, 9 bytes

Z^t!dXAY)

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Explanation

Z^    % Implicit inputs. Cartesian product. EachGives Cartesiana tuplecharacter matrix where 
      % each row is a rowCartesian tuple (*)
t!    % Duplicate, transpose
d     % Consecutive differences, computed along vertical dimension
XA    % Vertical-all: gives true for columns that only contain nonzeros
Y)    % Use as logical index into the rows of (*). ImpliciyImplicit display

MATL, 9 bytes

Z^t!dXAY)

Try it online!

Explanation

Z^    % Implicit inputs. Cartesian product. Each Cartesian tuple is a row (*)
t!    % Duplicate, transpose
d     % Consecutive differences, computed along vertical dimension
XA    % Vertical-all: gives true for columns that only contain nonzeros
Y)    % Use as logical index into the rows of (*). Impliciy display

MATL, 9 bytes

Z^t!dXAY)

Try it online!

Explanation

Z^    % Implicit inputs. Cartesian product. Gives a character matrix where 
      % each row is a Cartesian tuple (*)
t!    % Duplicate, transpose
d     % Consecutive differences, computed along vertical dimension
XA    % Vertical-all: gives true for columns that only contain nonzeros
Y)    % Use as logical index into the rows of (*). Implicit display

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answered Feb 19, 2024 at 18:08

Luis Mendo

106.7k
10
139
382

MATL, 9 bytes

Z^t!dXAY)

Try it online!

Explanation

Z^    % Implicit inputs. Cartesian product. Each Cartesian tuple is a row (*)
t!    % Duplicate, transpose
d     % Consecutive differences, computed along vertical dimension
XA    % Vertical-all: gives true for columns that only contain nonzeros
Y)    % Use as logical index into the rows of (*). Impliciy display