A row vector is not a matrix...
Not very clear problem, flip vertically? horizontally? elementwise?
The problem is really to just reverse a row vector. A row vector happens to be a matrix, but so does a column vector, and two or more dimensional matrices. Saying, "reverse a matrix" is ambiguous.
The Goldbach Conjecture, Part 2
Prime factor digits
Given an unsigned integer x, find the largest y by rearranging the bits in x
Rotate a Matrix by 90 degrees
Find the area of the four walls
Concatenate two strings
Find the dimensions of a matrix
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