This module has only a few functions.
Once you decide to use binary search, you should immediately think of using this module
import bisect L = [1,3,3,6,8,12,15] x = 3 x_insert_point = bisect.bisect_left(L,x) #在L中查找x,x存在时返回x左侧的位置,x不存在返回应该插入的位置..这是3存在于列表中,返回左侧位置1 print x_insert_point x_insert_point = bisect.bisect_right(L,x) #在L中查找x,x存在时返回x右侧的位置,x不存在返回应该插入的位置..这是3存在于列表中,返回右侧位置3 print x_insert_point x_insort_left = bisect.insort_left(L,x) #将x插入到列表L中,x存在时插入在左侧 print L x_insort_rigth = bisect.insort_right(L,x) #将x插入到列表L中,x存在时插入在右侧 print L
Result:
1
3
[1, 3, 3, 3, 6, 8, 12, 15]
[1, 3, 3, 3, 3, 6, 8, 12, 15]
In actual use
bisect.insort_left与 bisect.insort_right 差别不大,作用基本相同 。。。

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