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[二分查找] [luoguP3500] [POI2010] TES-Intelligence Test
题目描述 One of the tasks in the Byteotian Intelligence Test (BIT) is to cross out numbers from an initial sequence in such a way that leaves as a result ...
分类:其他好文   时间:2017-10-04 00:59:27    阅读次数:290
[GeeksForGeeks] Remove all half nodes of a given binary tree
Given A binary Tree, how do you remove all the half nodes (which has only one child)? Note leaves should not be touched as they have both children as ...
分类:其他好文   时间:2017-09-29 09:52:12    阅读次数:156
2017 icpc 南宁网络赛
M. Frequent Subsets Problem The frequent subset problem is defined as follows. Suppose UU={1, 2,\ldots…,N} is the universe, and S_{1}S?1??, S_{2}S?2?? ...
分类:其他好文   时间:2017-09-24 22:16:44    阅读次数:491
PAT-A1004. Counting Leaves (30)
根据家谱树从根结点开始输出每一层的叶子结点数量。使用BFS来解决。因为不会重复访问结点,所以不需要vis数组来标记是否访问过该结点。 1 //#include "stdafx.h" 2 #include <iostream> 3 #include <vector> 4 #include <queue ...
分类:其他好文   时间:2017-09-24 11:45:30    阅读次数:180
Core Java 简单谈谈HashSet
同学们在看这个问题的时候,我先提出者两个问题,然后大家带着问题看这个文章会理解的更好。 打开源码, 我们看到如下代码,我们看到HashSet也有一个HashMap做为属性,HashSet()的构造方法就是将这个map实例化。如果大家对HashMap还不了解话,可以看我的这篇博文。还要注意有一个静态f ...
分类:编程语言   时间:2017-09-17 23:32:26    阅读次数:244
[GeeksForGeeks] Diameter of a Binary Tree
The diameter of a tree (sometimes called the width) is the number of nodes on the longest path between two leaves in the tree. The diagram below shows ...
分类:其他好文   时间:2017-09-15 10:09:43    阅读次数:147
404. Sum of Left Leaves (Easy)
Find the sum of all left leaves in a given binary tree. Example: 3 / \ 9 20 / \ 15 7 There are two left leaves in the binary tree, with values 9 and 1 ...
分类:其他好文   时间:2017-09-13 01:47:05    阅读次数:219
[LintCode] Binary Tree Leaves Order Traversal
Given a binary tree, collect a tree's nodes as if you were doing this: Collect and remove all leaves, repeat until the tree is empty. Have you met thi ...
分类:其他好文   时间:2017-09-07 10:11:27    阅读次数:219
[GeeksForGeeks] Extract Leaves of a Binary Tree in a Doubly Linked List
Given a Binary Tree, extract all leaves of it in a Doubly Linked List (DLL). Note that the DLL need to be created in-place. Assume that the node struc ...
分类:其他好文   时间:2017-09-06 14:35:28    阅读次数:207
码农赏英诗(一)
写景诗贵在意境,意境润于修辞。美国诗人C. 麦凯的诗《冬后》,全诗写景状物,掉落的树叶(leaves)、檐(eaves)下的冬鸟、竹林(bamboo grove)、蜜蜂、黑脉风铃草(black-ribbed blue-bells)……,大多是“我们(we)”眼中尚未见但可想见的景,用toward…w ...
分类:其他好文   时间:2017-08-29 23:51:34    阅读次数:420
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