python 递归二分搜索问题中的类型错误

Question

class Solution:
    def search(self, nums: List[int], target: int) -> int:
        left, right = 0, len(nums) - 1
        
        while left <= right:
            curr_ind = (right+left)//2
            print(nums[curr_ind + 1:len(nums)])
            if nums[curr_ind] == target:
                return curr_ind
            elif nums[curr_ind] > target:
                return search(nums[left:curr_ind], target)
            elif nums[curr_ind] < target:
                return search(nums[curr_ind + 1:len(nums)], target)
            
        return -1

我在倒数第二行收到无法散列类型 'list' 错误。我不认为我在这个问题上使用字典，但我不确定为什么会给我这个错误。

Answer 1

我认为你错误地使用了递归，试试这个：

class Solution:
    def search(self, nums: List[int], target: int) -> int:
        left, right = 0, len(nums) - 1
        
        while left <= right:
            curr_ind = (right+left)//2
            print(nums[curr_ind + 1:len(nums)])
            if nums[curr_ind] == target:
                return curr_ind
            elif nums[curr_ind] > target:
                right = curr_ind - 1
            elif nums[curr_ind] < target:
                left = curr_ind + 1
            
        return -1

python 递归二分搜索问题中的类型错误

Type Error in python recursive binary search problem

python

binary

recursion

search