题解 | #求解立方根#
求解立方根
https://www.nowcoder.com/practice/caf35ae421194a1090c22fe223357dca
n = float(input())
flag = True
if n < 0:
n = -n
flag = False
for i in range(int(n * 1000)):
if i ** 3 >= int(n * 1000):
if flag == False:
print("-", end="")
print(i / 10 if (i / 10) ** 3 - n < n - ((i - 1) / 10) ** 3 else (i - 1) / 10)
break