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Files » 二分查找.py

UserName LastName, 03/28/2025 10:33 AM

 
def number(arr,target):
left = 0
right = len(arr)-1
while left <= right:
mid = (left + right) // 2
if arr[mid] == target:
return min
elif arr[mid] < target:
left = mid + 1
else:
right = mid -1
return -1

arr = [1,2,3,4,5,6,7,8,9]
print(number(arr,2))



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