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NLTK读书笔记和实践问题记录
python版本3.4.2:1、书上的例子是from nltk.corpus import wordnet as wnwn.synset('car.n.01').lemma_names #获得同义词集wn.synset('car.n.01').definition #获得定义在3.4.2下执行得.....
分类:其他好文   时间:2015-01-15 01:38:45    阅读次数:644
LeetCode--Convert Sorted Array to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it to a height balanced BST. /** * Definition for binary tree * struct TreeNode { * int val; * TreeNode *left; * ...
分类:其他好文   时间:2015-01-14 15:35:32    阅读次数:178
LeetCode--Convert Sorted List to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it to a height balanced BST. /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *nex...
分类:其他好文   时间:2015-01-14 15:33:27    阅读次数:169
LeetCode--Maximum Depth of Binary Tree
Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. /** * Definition for binary tree *...
分类:其他好文   时间:2015-01-14 12:49:54    阅读次数:131
LeetCode--Remove Duplicates from Sorted List
Given a sorted linked list, delete all duplicates such that each element appear only once. For example, Given 1->1->2, return 1->2. Given 1->1->2->3->3, return 1->2->3. /** * Definition for sin...
分类:其他好文   时间:2015-01-13 16:07:31    阅读次数:212
mysql sql语句大全(2)
1、说明:创建数据库CREATEDATABASEdatabase-name2、说明:删除数据库dropdatabasedbname3、说明:备份sqlserver---创建备份数据的deviceUSEmasterEXECsp_addumpdevice‘disk‘,‘testBack‘,‘c:\mssql7backup\MyNwind_1.dat‘---开始备份BACKUPDATABASEpubsTOtestBack4、说明:创建..
分类:数据库   时间:2015-01-12 19:32:06    阅读次数:198
LeetCode--Rotate List
Given a list, rotate the list to the right by k places, where k is non-negative. For example: Given 1->2->3->4->5->NULL and k = 2, return 4->5->1->2->3->NULL. /**  * Definition for singly-lin...
分类:其他好文   时间:2015-01-12 16:45:05    阅读次数:151
leetcode 【 Convert Sorted List to Binary Search Tree 】python 实现
题目:Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.代码:oj测试通过Runtime:178 ms 1 # Definition...
分类:编程语言   时间:2015-01-11 20:18:51    阅读次数:235
关于Oracle的一些基础知识以及注意事项
一.oracle基础1.1 DDL(Data Definition Language) 数据定义语言 create drop,desc(注意,此操作只能在PL/SQL Developer的命令窗户执行,在sql窗口不能执行)table tablename1.2 DML(Data Manipul...
分类:数据库   时间:2015-01-10 23:42:47    阅读次数:372
bfs-dfs-bst
/**  * Definition for binary tree  * struct TreeNode {  *     int val;  *     TreeNode *left;  *     TreeNode *right;  *     TreeNode(int x) : val(x), left(NULL), right(NULL) {}  * }; ...
分类:其他好文   时间:2015-01-10 18:20:29    阅读次数:181
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