Problem 67. Find common elements in matrix rows

Given a matrix, find all elements that exist in every row.
For example, given
A =
1 2 3 5
9 2 5 9
3 2 5 9
1 2 1 5
5 1 3 2
the answer would be the vector '2 5'. Elements should be returned sorted ascending.
Note there is no guarantee that there are any such elements; if there are none, the routine should return the empty set. Also, the matrix might contain NaNs, repeats, or very large or very small elements.

Solution Stats

35.68% Correct | 64.32% Incorrect
Last Solution submitted on Jun 17, 2024

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