Replace all the secondary diagonal elements of the square array A with the number n
A = [1 2 3
4 5 6
7 8 9]
Output = [1 2 0
4 0 6
0 8 9]
A = 1;
n = 10;
Output = 10
Additional test cases have been added.
Elegant! I made a trivial modification tha reduced the size by 4 (Soluion 796772)
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