Python 归并排序（列表元素键盘输入）

以下是使用Python实现归并排序的示例代码：

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

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

# 从键盘输入待排序的列表元素
arr = input("请输入待排序的列表元素，以空格分隔：").split()
arr = [int(x) for x in arr]

sorted_arr = merge_sort(arr)
print("归并排序后的结果：", sorted_arr)