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xumaoxing

V2EX member #32304, joined on 2013-01-14 13:47:23 +08:00
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Dec 20, 2016
Replied to a topic by tl3shi 程序员 一道程序猿面试题目, 大家来看看?
def simple_sqrt(v, t):
if v < 0:
raise ValueError('domain error')

if v == 0:
return 0

# binary search
if v < 1:
left, right = v, 1
else:
left, right = 0, v
while True:
mid = (left + right) / 2.0
dest = mid * mid
diff = dest - v

if diff > 0 and (mid - t) * (mid - t) <= v:
return mid
if diff < 0 and (mid + t) * (mid + t) >= v:
return mid
if diff == 0:
return mid

if diff > 0:
right = mid
else:
left = mid
@tkin1992 加Q聊吧:156669271
北京的机会考虑吗
@dxb848295325 招应届生,感兴趣发简历给我
@hww 抱歉目前不提供实习岗位
@Giinez 嗯,好多小伙伴儿的第一反应都是这个
@onedayoneapple 没有上海职位
Mar 14, 2013
Replied to a topic by timeriver 问与答 Mac无法加入wifi,求解!
之前碰到过这样的问题。办法是将路由器的信道从13改为11,就正常了
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