could you give an example? it's kind of hard to figure out what you're asking for.
sorry, f(i) = 2 if i = even
The problem is asking for the sum of a function from 1 to n, where every odd input outputs 1, and even input outputs 2.
Not sure where the 'vectorization' is coming from for this problem.
Sums with Excluded Digits
letter yes yes & letter no no
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find the surface area of a cube
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