4 ms·

(((price - 100) / abs(price - 100)) * 25 + 75) / 10 Here you go, simple integer math, no programming necessary :) That said, this isn't optimisation, multiplic

(((price - 100) / abs(price - 100)) * 25 + 75) / 10 Here you go, simple integer math, no programming necessary :) That said, this isn't optimisation, multiplication and division aren't intrinsically better than branching.

jonsen 13y ago
if (price == 100){ ...
carlob 13y ago
x/abs(x) is really sign, which is something you can implement using bitwise oprations. Your solution fails when price == 100 as sibling pointed out.