文件: root - text - article - 2020 - 01 - symmetric-k-ary-tree.txt
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标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | 英文 | 主页 | 类别: 计算机科学 | 513 次阅读, 21974 次搜索 | 118 个单词
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Hi, here's your problem today. This problem was recently asked by Microsoft:
A k-ary tree is a tree with k-children, and a tree is symmetrical if the data of the left side of the tree is the same as the right side of the tree.
Here's an example of a symmetrical k-ary tree.
Given a k-ary tree, figure out if the tree is symmetrical.
Here is a starting point:
标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | 英文 | 主页 | 类别: 计算机科学 | 513 次阅读, 21974 次搜索 | 118 个单词 A k-ary tree is a tree with k-children, and a tree is symmetrical if the data of the left side of the tree is the same as the right side of the tree.
Here's an example of a symmetrical k-ary tree.
4
/ \
3 3
/ | \ / | \
9 4 1 1 4 9
Given a k-ary tree, figure out if the tree is symmetrical.
Here is a starting point:
class Node():
def __init__(self, value, children=[]):
self.value = value
self.children = children
def is_symmetric(root):
# Fill this in.
tree = Node(4)
tree.children = [Node(3), Node(3)]
tree.children[0].children = [Node(9), Node(4), Node(1)]
tree.children[1].children = [Node(1), Node(4), Node(9)]
print is_symmetric(tree)
# True
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