Problem 56155. Return the middle element of an NxN square matrix where N is odd

Let's say you are given an NxN square matrix where N is always going to be an odd number:
x = [ 1 2 3
4 5 6
7 8 9 ]
Your function should return 5.
Edge Case: Your solution must be able to handle empty matrices, and return a NaN in that case like:
% Input Matrix
x = []
% Correct answer returned by your function
y = NaN
Solve

Solution Stats

43.33% Correct | 56.67% Incorrect
Last Solution submitted on Feb 14, 2025

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