Question

I have a value from 0 to 200 where 0 is better quality and 200 the worst quality.

How could I convert (In obj-c/cocoa framework) that to an integer from 0-5 being 5 best?.

For example 200 would be 0 and 0 would be 5.

Answer 1

Hopefully the rounding works here:

int input;
int output = 5 - (int)floorf( ((float)input)/40.0f);

You may get the same results by just doing

int output = 5 - (input/40);

but it depends on your compiler’s math settings.