Does python provide functions for performing binary search on sorted lists, analogous to the std::lower_bound
and std::upper_bound
algorithms of the C++ Standard Library?
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Answer
Those functions are located in the bisect module:
bisect.bisect_left(a, x, lo=0, hi=len(a)) is the analog of
std::lower_bound()
.bisect.bisect_right(a, x, lo=0, hi=len(a)) is the analog of
std::upper_bound()
.
Note: there is also a function bisect() which is an alias for bisect_right().