题解 | 求解立方根
import math
n = float(input().strip())
if n >= 0:
print(round(math.pow(n,1/3),1))
else:
i = round(math.pow(abs(n),1/3),1)
i = -i
print(i)
import math
n = float(input().strip())
if n >= 0:
print(round(math.pow(n,1/3),1))
else:
i = round(math.pow(abs(n),1/3),1)
i = -i
print(i)
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