摘要：
Given the root node of a binary search tree (BST) and a value. You need to find the node in the BST that the node's value equals the given value. Retu 阅读全文
posted @ 2018-12-28 17:22
fatttcat
阅读(103)
评论(0)
推荐(0)
摘要：
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 ident 阅读全文
posted @ 2018-12-28 17:17
fatttcat
阅读(89)
评论(0)
推荐(0)
摘要：
Given a binary tree, you need to compute the length of the diameter of the tree. The diameter of a binary tree is the length of the longest path betwe 阅读全文
posted @ 2018-12-28 15:52
fatttcat
阅读(106)
评论(0)
推荐(0)
摘要：
Given a binary tree, return all root-to-leaf paths. Note: A leaf is a node with no children. Example: backtracking, 记得返回上层的时候删掉该层节点 time: O(n) -- visi 阅读全文
posted @ 2018-12-28 15:06
fatttcat
阅读(98)
评论(0)
推荐(0)
摘要：
Given two non-empty binary trees s and t, check whether tree t has exactly the same structure and node values with a subtree of s. A subtree of s is a 阅读全文
posted @ 2018-12-28 13:23
fatttcat
阅读(114)
评论(0)
推荐(0)
摘要：
Invert a binary tree. Example: Input: Output: Trivia:This problem was inspired by this original tweet by Max Howell: time: O(n), space: O(logn) 阅读全文
posted @ 2018-12-28 11:05
fatttcat
阅读(90)
评论(0)
推荐(0)
摘要：
Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest l 阅读全文
posted @ 2018-12-28 10:58
fatttcat
阅读(93)
评论(0)
推荐(0)
摘要：
Given a binary tree, determine if it is height-balanced. For this problem, a height-balanced binary tree is defined as: a binary tree in which the dep 阅读全文
posted @ 2018-12-28 10:54
fatttcat
阅读(102)
评论(0)
推荐(0)
摘要：
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary tree [1,2,2,3,4,4,3] is symmet 阅读全文
posted @ 2018-12-28 09:38
fatttcat
阅读(101)
评论(0)
推荐(0)
摘要：
Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n 阅读全文
posted @ 2018-12-28 09:07
fatttcat
阅读(117)
评论(0)
推荐(0)
浙公网安备 33010602011771号