题解 | #KiKi设计类继承#
KiKi设计类继承
http://www.nowcoder.com/practice/699ba050e2704591ae3e62401a856b0e
本来以为很简单的，哎
a = list(input(''))
b = input('')
c = input('')
d=['','']
e=0
for i in range(0, len(a)):
if a[i] != ' 'or'':
d[e]+=a[i]
else:
e+=1
continue
print(int(d[0]) * int(d[1]))
if int(b) ** 2 * 3.14 != int(int(b) ** 2 * 3.14):
print(int(b) ** 2 * 3.14)
else:
print(int(int(b) ** 2 * 3.14))
print(int(c) ** 2)
