Python3解leetcode Same Tree 问题描述: Given two binary trees, write a function to check if they are the same or not. Two binary trees are considered the same if they are structurally identical and the nodes have the same value. Example 1: Input: 1 1 / \ / \ 2 3 2 3 [1,2,3]...
首先判断两个根节点的值是否相同,如果相同,递归判断根的左右子树。 代码: #Definition for a binary tree node#class TreeNode:#def __init__(self, x):#self.val = x#self.left = None#self.right = NoneclassSolution:#@param p, a tree node#@param q, a tree node#@return a booleandefisSame...
Loading...leetcode.com/problems/same-tree/discuss/32729/Shortest%2Bsimplest-Python def isSameTree(self, p, q): def t(n): return n and (n.val, t(n.left), t(n.right)) return t(p) == t(q) t函数返回的是(root.val,(左子树表达),(右子树表达)) 易见可以用recursion来做: # De...
Code link: https://leetcode.com/problems/same-tree/ Recursive solution: class Solution { public boolean isSameTree(TreeNode p, TreeNode q) { if (p == ... DFS Binary Tree BFS 其他 转载 mob604756e72afd 2021-07-30 01:44:00 78阅读 2评论 Same GCDs "D Same GCDs" 参考: "欧拉...
Same Tree Code link: https://leetcode.com/problems/same-tree/ Recursive solution: class Solution { public boolean isSameTree(TreeNode p, TreeNode q) { if (p == ... DFS Binary Tree BFS 其他 转载 mob604756e72afd 2021-07-30 01:44:00 78阅读 2评论 ...
Python实现: # Definition for a binary tree node.# class TreeNode:# def __init__(self, x):# self.val = x# self.left = None# self.right = NoneclassSolution:defisSameTree(self,p,q):""" :type p: TreeNode :type q: TreeNode ...
Number of Steps to Reduce a Number to Zero 链接: https://leetcode.com/problems/number-of-steps-to-reduce-a-number-to-zero/ 题目描述: Given a non-negative integer num, return the number...leetcode 1342. Number of Steps to Reduce a Number to Zero(python) 描述Given a non-negative ...
AC代码(Python) 1#Definition for a binary tree node.2#class TreeNode(object):3#def __init__(self, x):4#self.val = x5#self.left = None6#self.right = None78classSolution(object):9defisSameTree(self, p, q):10"""11:type p: TreeNode12:type q: TreeNode13:rtype: bool14"""15...
题目来源: https://leetcode.com/problems/same-tree/ 题意分析: 判断两棵树是否相等。 题目思路: 用递归的思想,先判断根节点,再判断左右子树。 代码(python): # Definition for a binary tree node. # class
Leetcode 100 Same Tree python 题目: Given two binary trees, write a function to check if they are equal or not. Two binary trees are considered equal if they are structurally identical and the nodes have the same value. 1classSolution(object):2defisSameTree(self, p, q):3ifp == None...