what wrong with i logic:
i calulate each equal angle tp=360/k
then b/w a and b h=tp*abs(b-a)
if(h==ans) ans=0
if(h<180) ans=abs(b-a-1)
else ans=k-2-abs(b-a) plzz help....
here is my code:u4QzKr - Online C++0x Compiler & Debugging Tool - Ideone.com
Part I
Dividing loses precision. It may be very much precise, having an error in the order of ~ 10 ^ -12, but it won’t produce an exact result.
Instead you can do this.
omit this statement “tp = 360/k/1.;”
you know that tp * k == 360
therefore, h * k = 360 * (b - a)
h = (360 * (b-a)) / k;
if(h==180) ans=0;
Always use the precision loss statement in the final step. This way, you deal with exact figures.
Part II
We are not sure whether b is greater than a, therefore add the following statements:
tpa = a;
tpb = b;
a = min(tpa, tpb);
b = max(tpa, tpb);
You can find the solution link here.
Try to avoid going into double/float as much as you can. “==” doesnt work with double as it works with int.
Heyy for second part i already used abs function…
Okay.
Are you able to implement the first part?
If not, post the code link (in which you used abs function).