下列归并排序Python实现程序中的横线处应填入的代码片段是？

第11835题单选题

def merge_sort(arr):    
    if len(arr) <= 1:
        return arr
    mid = len(arr) // 2
    left = arr[:mid]
    right = arr[mid:]
    merge_sort(left)
    merge_sort(right)
    return merge(left, right)

def merge(left, right):
    result = []
    i, j = 0, 0
    —————————————————        
    if left[i] < right[j]:
        result.append(left[i])
        i += 1
    else:
        result.append(right[j])
        j += 1
    result += left[i:]
    result += right[j:]
    return result

while i > len(left) and j < len(right):

while i < len(left) and j > len(right):

while i > len(left) and j > len(right):

while i < len(left) and j < len(right):

程序运行统计

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知识点：

算法基础-归并排序 Python基础-循环与条件判断

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