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PAT1004 Counting Leaves
A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child. Input Specification: Each inp ...
分类:其他好文   时间:2019-05-20 21:27:17    阅读次数:164
第五章学习小结
本章学习的内容是树和二叉树,老师在上课时就说过这一章的内容比较难理解比较复杂,果不其然PTA上的编程题连题目都不是很能理解,但感觉只要理解好树是如何建立的,树的结构是怎样的,就能有比较清晰的脉络和思路。 首先是List Leaves,这个题目难点估计就是理解题目的意思和如何获得结点的值。首先,要先弄 ...
分类:其他好文   时间:2019-05-06 01:30:23    阅读次数:163
PTA——输出树的叶结点
PTA 03-树2 List Leaves 分析: 1、利用队列做层序遍历 2、17行scanf()一开始没写\n,如果只有这一行输入没事,但后面还有scanf(),而%c又是可以识别\n的,所以会导致错误,详见: scanf()的陷阱 https://blog.csdn.net/ff_tt/art ...
分类:其他好文   时间:2019-05-04 18:52:02    阅读次数:156
[LeetCode] Leaf-Similar Trees 叶结点相似的树
Consider all the leaves of a binary tree. From?left to right order, the values of those?leaves form a leaf value sequence. For example, in the given t ...
分类:其他好文   时间:2019-04-26 00:43:52    阅读次数:177
PTA数据结构之 List Leaves
Given a tree, you are supposed to list all the leaves in the order of top down, and left to right. Input Specification: Each input file contains one t ...
分类:其他好文   时间:2019-04-16 01:07:43    阅读次数:142
List Leaves
Given a tree, you are supposed to list all the leaves in the order of top down, and left to right. Input Specification: Each input file contains one t ...
分类:其他好文   时间:2019-04-16 00:45:24    阅读次数:133
leetcode 404. 左叶子之和(Sum of Left Leaves)
[TOC] 题目描述: 计算给定二叉树的所有左叶子之和。 示例: 解法: ...
分类:其他好文   时间:2019-03-22 14:10:42    阅读次数:90
116. Populating Next Right Pointers in Each Node
You are given a perfect binary tree where all leaves are on the same level, and every parent has two children. The binary tree has the following defin ...
分类:其他好文   时间:2019-03-11 11:54:35    阅读次数:186
Oracle 表复杂查询之多表合并查询
转自:https://www.cnblogs.com/GreenLeaves/p/6635887.html 本文使用到的是oracle数据库scott方案所带的表,scott是oracle数据库自带的方案,使用前请确保其解锁 Oracle合并查询一共有四种方式,分别使用不同的关键字:UNION、UN ...
分类:数据库   时间:2019-03-11 09:13:35    阅读次数:223
1004 Counting Leaves (30 分)
include using namespace std; typedef struct { int level;//节点所在层次 int flag;//0没有孩子,1有孩子 int father;//父节点 }Node; int main() { Node node[205]; int n, m;/ ...
分类:其他好文   时间:2019-03-05 15:21:59    阅读次数:226
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