题解 | #求解立方根#
求解立方根
https://www.nowcoder.com/practice/caf35ae421194a1090c22fe223357dca
while True:
try:
a = float(input().strip())
epsilon = 0.0001
low = min(-1, a)
high = max(1, a)
ans = (low + high) / 2
while abs(ans ** 3 - a) >= epsilon:
if ans ** 3 < a:
low = ans
else:
high = ans
ans = (low + high) / 2.0
print("%.1f" % ans)
except:
break
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