function ans = arraygcd(a)
% a=[45 15 200 300];
Note that all solutions (which passed the limited test suite with small size) involving only pair-wise gcd calculations are indeed incorrect. Those solutions include the following ones: 1) min(gcd(a,min(a))); 2) min(gcd(a(1), a)); 3) min(min(bsxfun(@gcd,a,a.'))); To eliminate these incorrect solutions, please simply add a test case with a = [21 15 35].
Back to basics 2 - Function Path
Check if number exists in vector
Make a 1 hot vector
Will there be a new leader?
Flip the bit
Acidity of vinegar and salts
Have you seen any Spindromes recently?
Given an unsigned integer x, find the largest y by rearranging the bits in x
Sorted highest to lowest?
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