diff options
| author | orivej <[email protected]> | 2022-02-10 16:44:49 +0300 |
|---|---|---|
| committer | Daniil Cherednik <[email protected]> | 2022-02-10 16:44:49 +0300 |
| commit | 718c552901d703c502ccbefdfc3c9028d608b947 (patch) | |
| tree | 46534a98bbefcd7b1f3faa5b52c138ab27db75b7 /contrib/tools/python3/src/Lib/bisect.py | |
| parent | e9656aae26e0358d5378e5b63dcac5c8dbe0e4d0 (diff) | |
Restoring authorship annotation for <[email protected]>. Commit 1 of 2.
Diffstat (limited to 'contrib/tools/python3/src/Lib/bisect.py')
| -rw-r--r-- | contrib/tools/python3/src/Lib/bisect.py | 152 |
1 files changed, 76 insertions, 76 deletions
diff --git a/contrib/tools/python3/src/Lib/bisect.py b/contrib/tools/python3/src/Lib/bisect.py index 8f3f6a3fe35..6a07db58f9c 100644 --- a/contrib/tools/python3/src/Lib/bisect.py +++ b/contrib/tools/python3/src/Lib/bisect.py @@ -1,80 +1,80 @@ -"""Bisection algorithms.""" - -def insort_right(a, x, lo=0, hi=None): - """Insert item x in list a, and keep it sorted assuming a is sorted. - - If x is already in a, insert it to the right of the rightmost x. - - Optional args lo (default 0) and hi (default len(a)) bound the - slice of a to be searched. - """ - +"""Bisection algorithms.""" + +def insort_right(a, x, lo=0, hi=None): + """Insert item x in list a, and keep it sorted assuming a is sorted. + + If x is already in a, insert it to the right of the rightmost x. + + Optional args lo (default 0) and hi (default len(a)) bound the + slice of a to be searched. + """ + lo = bisect_right(a, x, lo, hi) - a.insert(lo, x) - -def bisect_right(a, x, lo=0, hi=None): - """Return the index where to insert item x in list a, assuming a is sorted. - - The return value i is such that all e in a[:i] have e <= x, and all e in - a[i:] have e > x. So if x already appears in the list, a.insert(x) will - insert just after the rightmost x already there. - - Optional args lo (default 0) and hi (default len(a)) bound the - slice of a to be searched. - """ - - if lo < 0: - raise ValueError('lo must be non-negative') - if hi is None: - hi = len(a) - while lo < hi: - mid = (lo+hi)//2 + a.insert(lo, x) + +def bisect_right(a, x, lo=0, hi=None): + """Return the index where to insert item x in list a, assuming a is sorted. + + The return value i is such that all e in a[:i] have e <= x, and all e in + a[i:] have e > x. So if x already appears in the list, a.insert(x) will + insert just after the rightmost x already there. + + Optional args lo (default 0) and hi (default len(a)) bound the + slice of a to be searched. + """ + + if lo < 0: + raise ValueError('lo must be non-negative') + if hi is None: + hi = len(a) + while lo < hi: + mid = (lo+hi)//2 # Use __lt__ to match the logic in list.sort() and in heapq - if x < a[mid]: hi = mid - else: lo = mid+1 - return lo - -def insort_left(a, x, lo=0, hi=None): - """Insert item x in list a, and keep it sorted assuming a is sorted. - - If x is already in a, insert it to the left of the leftmost x. - - Optional args lo (default 0) and hi (default len(a)) bound the - slice of a to be searched. - """ - + if x < a[mid]: hi = mid + else: lo = mid+1 + return lo + +def insort_left(a, x, lo=0, hi=None): + """Insert item x in list a, and keep it sorted assuming a is sorted. + + If x is already in a, insert it to the left of the leftmost x. + + Optional args lo (default 0) and hi (default len(a)) bound the + slice of a to be searched. + """ + lo = bisect_left(a, x, lo, hi) - a.insert(lo, x) - - -def bisect_left(a, x, lo=0, hi=None): - """Return the index where to insert item x in list a, assuming a is sorted. - - The return value i is such that all e in a[:i] have e < x, and all e in - a[i:] have e >= x. So if x already appears in the list, a.insert(x) will - insert just before the leftmost x already there. - - Optional args lo (default 0) and hi (default len(a)) bound the - slice of a to be searched. - """ - - if lo < 0: - raise ValueError('lo must be non-negative') - if hi is None: - hi = len(a) - while lo < hi: - mid = (lo+hi)//2 + a.insert(lo, x) + + +def bisect_left(a, x, lo=0, hi=None): + """Return the index where to insert item x in list a, assuming a is sorted. + + The return value i is such that all e in a[:i] have e < x, and all e in + a[i:] have e >= x. So if x already appears in the list, a.insert(x) will + insert just before the leftmost x already there. + + Optional args lo (default 0) and hi (default len(a)) bound the + slice of a to be searched. + """ + + if lo < 0: + raise ValueError('lo must be non-negative') + if hi is None: + hi = len(a) + while lo < hi: + mid = (lo+hi)//2 # Use __lt__ to match the logic in list.sort() and in heapq - if a[mid] < x: lo = mid+1 - else: hi = mid - return lo - -# Overwrite above definitions with a fast C implementation -try: - from _bisect import * -except ImportError: - pass - -# Create aliases -bisect = bisect_right -insort = insort_right + if a[mid] < x: lo = mid+1 + else: hi = mid + return lo + +# Overwrite above definitions with a fast C implementation +try: + from _bisect import * +except ImportError: + pass + +# Create aliases +bisect = bisect_right +insort = insort_right |
