Given the vectors x and y as input, multiply the vectors and return the summation of its elements.
x = [1 2 3 4];
y = [4 3 2 1];
x * y = [4 6 6 4];
z = 4 + 6 + 6 + 4 = 20
The Goldbach Conjecture, Part 2
Increment a number, given its digits
Reverse the elements of an array
Evaluating a polynomial
metre to feet converter
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