The problem title and description have been improved.
What should the behavior be when a certain value occurs three times or more in vector A? For example, when A = [2 5 3 4 2 1 3 2] (which is the same as the A in the problem description, but with another '2' added to the end), should matrix B list [5 4 2 1 3] before [5 3 4 1 2], or after?
if x is not continuous, the result will be not true
Finding Perfect Squares
Find relatively common elements in matrix rows
given 3 sides, find area of this triangle
letter yes yes & letter no no
Determine the square root
Create a fixed format text output
Extract part elements of matrix into one new matrix
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