Given an array, Find the sum of all of the elements in it
Examples:
Input x = [1 2 3 5; 4 5 6 7];
Output y is 33
Return the largest number that is adjacent to a zero
2887 Solvers
Swap the first and last columns
9009 Solvers
279 Solvers
Deleting an element in a matrix
226 Solvers
600 Solvers
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