码迷,mamicode.com
首页 >  
搜索关键字:leaves    ( 277个结果
UVA699 UVALive5471 The Falling Leaves【树权和】
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 ...
分类:其他好文   时间:2019-02-28 15:23:41    阅读次数:120
leetcode 404 左叶子之和 Sum of Left Leaves
C++ 递归遍历+判断左叶子节点,效率不高, 更多答案参考大佬解答: https://leetcode.com/problems/sum-of-left-leaves/discuss/244628/six-ways-to-solve-this-question 明天好好学习一下 ...
分类:其他好文   时间:2019-02-27 01:05:40    阅读次数:176
A题目
1 1001 A+B Format(20) 2 1002 A+B for Polynomials(25) 3 1003 Emergency(25) 4 1004 Counting Leaves(30) 5 1005 Spell It Right(20) 6 1006 Sign In and Sign ...
分类:其他好文   时间:2019-02-17 12:33:39    阅读次数:197
LeetCode 872 Leaf-Similar Trees 解题报告
题目要求 Consider all the leaves of a binary tree. From left to right order, the values of those leaves form a leaf value sequence. Two binary trees are c ...
分类:其他好文   时间:2019-02-17 11:15:34    阅读次数:185
单层决策树
Decision stump 基本原理 decision stump,决策树桩(我称它为一刀切),也称单层决策树(a one level decision tree),单层也就意味着尽可对每一列属性进行一次判断。如下图所示(仅对 petal length 进行了判断): 从树(数据结构)的观点来看, ...
分类:其他好文   时间:2019-02-14 22:16:12    阅读次数:563
PAT 甲级 1004 Counting Leaves
https://pintia.cn/problem-sets/994805342720868352/problems/994805521431773184 A family hierarchy is usually presented by a pedigree tree. Your job is ...
分类:其他好文   时间:2019-02-05 14:19:31    阅读次数:123
The Falling Leaves UVA - 699
题目链接:https://vjudge.net/problem/UVA-699 题目大意:给一颗二叉树,每个结点都有一个水平位置 :左子节点在它左边的1个单位,右子结点在它右边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。 思路:用sum[i]表示第i个水平位置的总和 。 其实这题并不难 ...
分类:其他好文   时间:2019-02-05 13:11:52    阅读次数:153
Choosing The Commander CodeForces - 817E (01字典树+思维)
As you might remember from the previous round, Vova is currently playing a strategic game known as Rage of Empires. Vova managed to build a large army ...
分类:其他好文   时间:2019-01-29 01:09:59    阅读次数:126
PAT 甲级测试题目 -- 1004 Counting Leaves
"题目链接" 题目大意: 家谱图通常使用家谱树表示(顾名思义,使用树的形式表示),求出家谱图中每一层中叶节点的数量 输入 每个测试用例包含以下输入数据:   第一行输入两个数据,一个是树的总结点数 N,范围为 0 include include using namespace s ...
分类:其他好文   时间:2019-01-15 11:51:37    阅读次数:201
404. Sum of Left Leaves
1.树可以这样操作root.left.val 2.迭代要记住返回值是什么,想想最简单的情况 3.迭代可以出现在return中 ...
分类:其他好文   时间:2019-01-13 22:24:39    阅读次数:212
277条   上一页 1 ... 5 6 7 8 9 ... 28 下一页
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!