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v0.8.1
Revision 36d4f8b0ecc33a6ce09783bd39dea9a8b4c191a5 authored by Guido van Rossum on 10 April 2000, 21:34:37 UTC, committed by Guido van Rossum on 10 April 2000, 21:34:37 UTC 
Correct fix by Mark Favas for the cast problems.
1 parent e110dcf
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bisect.py 
"""Bisection algorithms."""


def insort(a, x, lo=0, hi=None):
    """Insert item x in list a, and keep it sorted assuming a is sorted."""
    if hi is None:
        hi = len(a)
    while lo < hi:
        mid = (lo+hi)/2
        if x < a[mid]: hi = mid
        else: lo = mid+1
    a.insert(lo, x)


def bisect(a, x, lo=0, hi=None):
    """Find the index where to insert item x in list a, assuming a is sorted."""
    if hi is None:
        hi = len(a)
    while lo < hi:
        mid = (lo+hi)/2
        if x < a[mid]: hi = mid
        else: lo = mid+1
    return lo
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