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4 billion if statements (andreasjhkarlsson.github.io)

submitted 11 months ago by [email protected] to c/[email protected]

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[–] [email protected] 18 points 11 months ago* (last edited 11 months ago) (1 children)

Yeah but then ALL even numbers would be slow to compute because you would have to chain through every odd before you know that 2 is even.

Depends on the expected distribution of input values

[–] [email protected] 1 points 11 months ago

Heuristic: keep it until 512, afterwards powers of 2, and numbers like 1000, 2000,.., 10000, 20000,... (regex: [0-9]000+)