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Update adaptive_merge_sort.py

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ANANT JAIN 2024-10-17 01:41:31 +05:30 committed by GitHub
parent ad7fbab066
commit 952dc0a4ed
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1 changed files with 4 additions and 10 deletions
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sorts/adaptive_merge_sort.py
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@ -50,7 +50,7 @@ def adaptive_merge_sort_helper(array: list, aux: list, low: int, high: int) -> N
if array[mid] <= array[mid + 1]: if array[mid] <= array[mid + 1]:
print(f"Skipping merge as array[{mid}] <= array[{mid + 1}]") print(f"Skipping merge as array[{mid}] <= array[{mid + 1}]")
array[low : high + 1] = aux[low : high + 1] array[low:high + 1] = aux[low:high + 1]
return return
merge(array, aux, low, mid, high) merge(array, aux, low, mid, high)
@ -68,18 +68,12 @@ def merge(array: list, aux: list, low: int, mid: int, high: int) -> None:
i, j = low, mid + 1 i, j = low, mid + 1
for k in range(low, high + 1): for k in range(low, high + 1):
if i > mid: if i > mid or (j <= high and array[j] < array[i]):
aux[k] = array[j] aux[k] = array[j]
j += 1 j += 1
elif j > high:
aux[k] = array[i]
i += 1
elif array[i] <= array[j]: # Keep stable by using <=
aux[k] = array[i]
i += 1
else: else:
aux[k] = array[j] aux[k] = array[i]
j += 1 i += 1
for k in range(low, high + 1): for k in range(low, high + 1):
array[k] = aux[k] array[k] = aux[k]