Write a function that computes the sum of all elements of the input array v without using the following built-in function:
sum, trace, mean, norm, diag, numel, size, ans,width,height
The input v may be a vector or a matrix of any size.
If the input is empty, the function must return 0.
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Last Solution submitted on Mar 06, 2026

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Dyuman Joshi Christian Schröder Matthew Bolyard Lorenzo

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