Write a function that takes a 2D matrix/1D vector x as input and returns a row vector containing the number of rows and the number of columns of the matrix. If the input matrix is empty return -1 for both the number of rows and columns.
You are not allowed to use the MATLAB built-in functions:
size
length
numel
height
width
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Last Solution submitted on Feb 28, 2026

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Lorenzo

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