1111: Cylinder ,python版本

pi = 3.14159265358

while True:

try:

w,h=map(int,input().strip().split())

if w == 0 and h == 0:

    break

r = w / (2*pi)

v1 = pi *pow(r,2)*(h-2*r)

r = h / (2*pi + 2)

if w < 2*r :

    r = w/2 

v2 = pi * pow(r,2) * w 

print(round(max(v1,v2),3))

except:

break

很奇怪不知道为什么一直过不了，错误50 ，劳请各位指教