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Given a list of integers, made up of (hopefully) a small number of long runs
of consecutive integers, compute a representation of the form
((start1, end1), (start2, end2) ...). Then answer the question "was x present
in the original list?" in time O(log(# runs)).
� Nc C s� t | � } g } d } x� t t | � � D]{ } | d t | � k rf | | | | d d k rf q+ | | d | d � } | j t | d | d d � � | } q+ Wt | � S)a Represent a list of integers as a sequence of ranges:
((start_0, end_0), (start_1, end_1), ...), such that the original
integers are exactly those x such that start_i <= x < end_i for some i.
Ranges are encoded as single integers (start << 32 | end), not as tuples.
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_encode_range�tuple)Zlist_Z sorted_list�rangesZ
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/intranges.py�intranges_from_list
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_decode_range" s r c C s� t | d � } t j | | � } | d k rg t | | d � \ } } | | k o^ | k n rg d S| t | � k r� t | | � \ } } | | k r� d Sd S)z=Determine if `int_` falls into one of the ranges in `ranges`.r r TF)r �bisectZ bisect_leftr r )Zint_r
Ztuple_�pos�left�right�_r r r
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�<module> s
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| __init__.cpython-35.opt-1.pyc | File | 118 B | 0644 |
|
| __init__.cpython-35.pyc | File | 118 B | 0644 |
|
| codec.cpython-35.opt-1.pyc | File | 3.24 KB | 0644 |
|
| codec.cpython-35.pyc | File | 3.24 KB | 0644 |
|
| compat.cpython-35.opt-1.pyc | File | 548 B | 0644 |
|
| compat.cpython-35.pyc | File | 548 B | 0644 |
|
| core.cpython-35.opt-1.pyc | File | 9.69 KB | 0644 |
|
| core.cpython-35.pyc | File | 9.69 KB | 0644 |
|
| idnadata.cpython-35.opt-1.pyc | File | 25.8 KB | 0644 |
|
| idnadata.cpython-35.pyc | File | 25.8 KB | 0644 |
|
| intranges.cpython-35.opt-1.pyc | File | 1.79 KB | 0644 |
|
| intranges.cpython-35.pyc | File | 1.79 KB | 0644 |
|
| uts46data.cpython-35.opt-1.pyc | File | 225.44 KB | 0644 |
|
| uts46data.cpython-35.pyc | File | 225.44 KB | 0644 |
|