Programming Horror

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string.lower implementation (programming.dev)

submitted 4 months ago by mac to c/programming_horror

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[–] [email protected] 4 points 4 months ago (1 children)

I hope this is O(n!)

[–] [email protected] 8 points 4 months ago* (last edited 4 months ago)

This looks like O(n), because you don't include constants when calculating Big-O. It's still ~26 times slower than the implementation without the inner loop.

~~This looks like O(n^2) because of the sub.~~

I was right the first time. sub is "substring" and not "substitute".