题解 | #求立方根#
求解立方根
http://www.nowcoder.com/practice/caf35ae421194a1090c22fe223357dca
import sys
import math
for line in sys.stdin:
a = float(line.strip())
if a >= 0:
ss = math.pow( a, 1/3)
print("%.1f" % ss)
else:
ss = math.pow( -a, 1/3)
print("%.1f" % -ss)
#print(int(a[0]) + int(a[1])) 
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