Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column.
Example:
Input = [1 2 3 4 5;
4 3 1 2 2]'
Output = [3 4 5 2 1]'
Solve

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Last Solution submitted on Mar 16, 2026

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Matthew Bolyard Pragati Jason Lorenzo

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