在嵌套列表中执行二进制搜索的方法如下:
def binary_search_nested_list(nested_list, target):
low = 0
high = len(nested_list) - 1
while low <= high:
mid = (low + high) // 2
sublist = nested_list[mid]
if target < sublist[0] or target > sublist[-1]:
# 目标值不在当前子列表中
if target < sublist[0]:
high = mid - 1
else:
low = mid + 1
else:
# 在当前子列表中应用二进制搜索
sublist_result = binary_search(sublist, target)
if sublist_result is not None:
return sublist_result
else:
# 目标值不在当前子列表中
if target < sublist[0]:
high = mid - 1
else:
low = mid + 1
return None
def binary_search(sorted_list, target):
low = 0
high = len(sorted_list) - 1
while low <= high:
mid = (low + high) // 2
if sorted_list[mid] == target:
return mid
elif sorted_list[mid] < target:
low = mid + 1
else:
high = mid - 1
return None
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