The number of nodes in the tree is in the range [1, 500]. 0 <= Node.val <= 500 All the values Node.val are unique. target is the value of one of the nodes in the tree. 0 <= k <= 1000/** * Definition for a binary tree node. * public class TreeNode { * int val; * ...
Definition of method <method> is not accessible in this context Delegate class '<classname>' has no Invoke method, so an expression of this type cannot be the target of a method call Delegate constructor for type '<typename>', necessary for the implementation of delegates, cannot be found De...
示例:输入:[1,null,2,3]1\2/3输出:[1,3,2] 代码实现: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 varinorderTraversal=function(root){varstack=[]functionhelper(root){if(!root)returnroot.left&&helper(root.left)stack.push(root.val)root.right&&helper(root.right)}helper(root)returnstack...