Given an array of unique integers, each integer is strictly greater than 1. We make a binary tree using these integers and each number may be used for any number of times. Each non-leaf node's value should be equal to the product of the values of it'…

#include <stdio.h> #include <string.h> #include <stdlib.h> #define LIST_INIT_SIZE 10 #define LISTINCREMENT 100 #define STACK_INIT_SIZE 100 #define STACKINCREMENT 10 #define TRUE 1 #define FALSE 0 #define true 1 #define false 0 #define OK…

二叉树基础 满足这样性质的树称为二叉树:空树或节点最多有两个子树,称为左子树.右子树, 左右子树节点同样最多有两个子树. 二叉树是递归定义的,因而常用递归/DFS的思想处理二叉树相关问题,例如LeetCode题目 104. Maximum Depth of Binary Tree: // 104. Maximum Depth of Binary Tree int maxDepth(TreeNode* root) { ; +max(maxDepth(root->left),maxDepth(roo…

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 not. You need to merge them into a new binary tree. The merge rule is that if two nodes overlap, then…

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 not. You need to merge them into a new binary tree. The merge rule is that if two nodes overlap, then…

A full binary tree is a binary tree where each node has exactly 0 or 2 children. Return a list of all possible full binary trees with N nodes.  Each element of the answer is the root node of one possible tree. Each node of each tree in the answer mus…

For a binary tree T, we can define a flip operation as follows: choose any node, and swap the left and right child subtrees. A binary tree X is flip equivalent to a binary tree Y if and only if we can make X equal to Y after some number of flip opera…

Given an array of unique integers, each integer is strictly greater than 1. We make a binary tree using these integers and each number may be used for any number of times. Each non-leaf node's value should be equal to the product of the values of it'…

题目: 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 not. You need to merge them into a new binary tree. The merge rule is that if two nodes overlap,…

［抄题］: 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 not. You need to merge them into a new binary tree. The merge rule is that if two nodes overlap…