Problem 44401. Vertical matrix sort
Given a matrix x with n rows and m columns, return a matrix y with 2n rows and m columns, such that every column in x is sorted from low to high and then from high to low.
Example:
x = 8 9 3 9 9 6 5 2 2 1 9 9
y = 2 1 3 2 8 6 5 9 9 9 9 9 9 9 9 9 8 6 5 9 2 1 3 2
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1 Comment
goc3
on 2 Jan 2018
Additional test cases have been added.
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