perhaps you should specify that y is in the order of the first occurence of each unique element of x
This would be a better problem if unique and sort functions were not allowed
Solution without using sort(.) or unique(.) .
Solution without using sort(_) or unique(_) .
Note 1) this solution does not use sort() anywhere :) 2) the more elegant "stable" is not available for unique in pre-2012 MATLAB.
Inner product of two vectors
Are all the three given point in the same line?
Max index of 3D array
Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
length of a vector
Set some matrix elements to zero
Sophie Germain prime
Matrix with different incremental runs
Unique values without using UNIQUE function
Create a matrix from a cell
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