def __init__(self, nestedList): """ Initialize your data structure here. :type nestedList: List[NestedInteger] """ self.queue = deque() # 遍历得到所有的元素 self._get_elements(nestedList) # 统计元素的个数 self.count = len(self.queue) def _get_elements(self, nestedList): for item ...
https://leetcode.com/problems/flatten-nested-list-iterator/ 展平嵌套的list。 从调用的方式来看,总会调用到最后,所以在构造函数中递归展开所有的数放到一位数组中。 另一种方式是把nested list压到栈中,需要的时候再从栈中拿。 注意需要调用注释中的isInteger(),getInteger()和getList()三个方法。 1#"""2...
* bool isInteger() const; * * // Return the single integer that this NestedInteger holds, if it holds a single integer * // The result is undefined if this NestedInteger holds a nested list * int getInteger() const; * * // Return the nested list that this NestedInteger holds, if it ...
3. ZIP zip是一个内置函数，允许并行迭代多个序列（例如列表或元组）。下面我们使用同时zip迭代两个列表x并y对其相应的元素执行操作。x = [1, 2, 3, 4]y = [5, 6, 7, 8]# iterate over both arrays simultaneouslyfor a, b in zip(x, y): print(a, b, a + b, a * b)4. 生成器 Py...
# iterate over both arrays simultaneously for a, b in zip(x, y): print(a, b, a + b, a * b) 1 5 6 5 2 6 8 12 3 7 10 21 4 8 12 32 在本例中,它打印出和中每个元素的值x和y,它们的总和以及它们的乘积。 04 生成器
Dot product of two arrays. dump(file) Dump a pickle of the array to the specified file. dumps() Returns the pickle of the array as a string. fill(value) Fill the array with a scalar value. flatten([order]) Return a copy of the array collapsed into one dimension. ...
flatten_nested_arrays bool 필수 속성 제어 프로그램의 중첩 배열 처리입니다. 중첩된 JSON 배열을 병합하도록 선택하면 훨씬 더 많은 수의 행이 생성될 수 있습니다. include_path bool 필수 데이...
In such a case it is clear that every face is represented by a sub-array in the geometry array and we can easily determine which point belongs to which face. But this nested array structure is slow to read, so we have to "flatten" nested arrays into one, and store missing information...
def flatten_params(self, data, base_key=None): """ Flatten out nested arrays and dicts in query params into correct format """ result = {} if data is None: return result map_data = None> if not isinstance(data, collections.Mapping):E AttributeError: module 'collections' has no attrib...
x = [1, 2, 3, 4]y = [5, 6, 7, 8] # iterate over both arrays simultaneouslyfor a, b in zip(x, y):print(a, b, a + b, a * b)1 5 6 52 6 8 123 7 10 214 8 12 32 在本例中,它打印出和中每个元素的值x和y,它们...