题目链接:https://vjudge.net/problem/UVA-1525 题目链接:https://vjudge.net/problem/POJ-1577 题目大意 略. 分析 建树,然后先序遍历. 代码如下 #include <cmath> #include <ctime> #include <iostream> #include <string> #include <vector> #include <cstdio> #i…

The Falling Leaves Time Limit: 3000MS   Memory Limit: Unknown   64bit IO Format: %lld & %llu Submit Status Description   Each year, fall in the North Central region is accompanied by the brilliant colors of the leaves on the trees, followed quickly b…

0.唔.这道题 首先要明确根节点在哪儿 初始化成pos=maxn/2; 1.因为是先序的输入方法,所以这个建树的方法很重要 void build(int p) { int v; cin>>v; ) { sum[p]+=v; build(p-),build(p+); } } #include <iostream> #include <cstring> using namespace std; ; int sum[maxn]; int k; void build(int p…

UVA.699 The Falling Leaves (二叉树 思维题) 题意分析 理解题意花了好半天,其实就是求建完树后再一条竖线上的所有节点的权值之和,如果按照普通的建树然后在计算的方法,是不方便实现的,思维转换,在数组中实现,从根节点,向左的话即在a[root-1]的位置累加上节点权值,再向左即在a[root-2]位置累加权值,向右则在a[root+1]的位置累加权值,以此类推,方可实现求和的要求. 代码总览 #include <cstdio> #include <cstring&…

UVa 699 The Falling Leaves(递归建树) 假设一棵二叉树也会落叶  而且叶子只会垂直下落   每个节点保存的值为那个节点上的叶子数   求所有叶子全部下落后   地面从左到右每堆有多少片叶子 和UVa 839 -- Not so Mobile(树的递归输入)有点像  都是递归输入的  一个节点(设水平位置为p)  则它的左右儿子节点的水平位置分别为  p-1  p+1   也是可以边输入边处理的  输入完也就得到答案了   注意每个样例后面都有一个空行  包括最后一个 #…

本文纯属原创.转载请注明出处,谢谢. http://blog.csdn.net/zip_fan. Description Each year, fall in the North Central region is accompanied by the brilliant colors of the leaves on the trees, followed quickly by the falling leaves accumulating under the trees. If the sa…

Each year, fall in the North Central region is accompanied by the brilliant colors of the leaves on thetrees, followed quickly by the falling leaves accumulating under the trees. If the same thing happenedto binary trees, how large would the piles of…

uva 699 紫书P159 Each year, fall in the North Central region is accompanied by the brilliant colors of the leaves on the trees, followed quickly by the falling leaves accumulating under the trees. If the same thing happened to binary trees, how large w…

Description Each year, fall in the North Central region is accompanied by the brilliant colors of the leaves on the trees, followed quickly by the falling leaves accumulating under the trees. If the same thing happened to binary trees, how large woul…

  // UVa699 The Falling Leaves // 题意:给一棵二叉树,每个节点都有一个水平位置:左儿子在它左边1个单位,右儿子在右边1个单位.从左向右输出每个水平位置的所有结点的权值之和.按照递归方式输入,-1表示空 树 // UVa699 The Falling Leaves // Rujia Liu // 题意:给一棵二叉树,每个节点都有一个水平位置:左儿子在它左边1个单位,右儿子在右边1个单位.从左向右输出每个水平位置的所有结点的权值之和.按照递归方式输入,-1表示空树…