Given a binary tree with the following rules: root.val == 0 If treeNode.val == x and treeNode.left != null, then treeNode.left.val == 2 * x ...
地址https: leetcode cn.com contest weekly contest problems find elements in a contaminated binary tree 題目描述給出一個滿足下述規則的二叉樹: root.val 如果 treeNode.val x 且 treeNode.left null,那么 treeNode.left.val x 如果 treeN ...
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Given a binary tree with the following rules: root.val == 0 If treeNode.val == x and treeNode.left != null, then treeNode.left.val == 2 * x ...
Given a binary tree, collect a tree's nodes as if you were doing this: Collect and remove all leaves, repeat until the tree is empty. Example ...
在寫這篇文章之前說一下數據結構和算法這個系列,這個系列包含了很多東西,比如啥子排序,線性表,廣義表,樹,圖這些大家都是知道的,但是這些東西我們學了之后工作中能用到的又有多少呢,據我所知絕大部分公司,一線碼農,屌絲,程序猿是用不到這些東西,既然這樣為啥子我還要強調這個系列呢,本人覺得算法和數 ...
Invert a binary tree. to Trivia: This problem was inspired by this original tweet by Max Howell: Google: 90% of our engineers use ...
Given a binary tree, return the values of its boundary in anti-clockwise direction starting from root. Boundary includes left boundary, leaves ...
們一個二叉樹,讓我們返回所有根到葉節點的路徑,跟之前那道Path Sum II很類似,比那道稍微簡單一些, ...
Given a binary tree, return the values of its boundary in anti-clockwise direction starting from root. Boundary includes left boundary ...
Given an integer array with no duplicates. A maximum tree building on this array is defined as follow: The root is the maximum number ...