python3 <<'PY' import math,random a=0.25; b=1.0/12 def G(y1,y2,q,r): alpha=2*a+2*b-y1-y2; mu1=a+b-y1; mu2=b+a-y2; nu1=a+b q2=alpha-q if y1<0 or y1>b or y2<0 or y2>a or q<=1e-12 or q2<=1e-12: return -1 lo=max(0.0,q-mu2); hi=min(q,mu1) if rhi+1e-11: return -1 den=r*q2/q-(mu1-r) if abs(den)<1e-14: return -1 c=(a*q2-(mu1-r)*nu1)/den if c<-1e-10 or c>q+1e-10 or c>nu1+1e-10 or nu1-c>q2+1e-10: return -1 r2=mu1-r; c2=nu1-c t1=math.sqrt(max(0,a*r*c))+math.sqrt(max(0,b*r*(q-c)))+math.sqrt(max(0,b*(q-r)*c))+math.sqrt(max(0,a*(q-r)*(q-c))) t2=math.sqrt(max(0,a*r2*c2))+math.sqrt(max(0,b*r2*(q2-c2)))+math.sqrt(max(0,b*(q2-r2)*c2))+math.sqrt(max(0,a*(q2-r2)*(q2-c2))) C=math.sqrt(y1+y2+a)*(math.sqrt(b*y1)+math.sqrt(a*y2)+a) return t1+t2+b**1.5+C best=-1; arg=None for it in range(1000000): y1=random.random()*b; y2=random.random()*a alpha=2*a+2*b-y1-y2; mu1=a+b-y1; mu2=b+a-y2 q=random.uniform(1e-10,alpha-1e-10) lo=max(0.0,q-mu2); hi=min(q,mu1) if hibest: best=g; arg=(y1,y2,q,r) print("best",best,arg,"cost",1-best) PY