Sizzle中有一个contains方法(jQuery.contains),用来遍历是否包含指定的元素 IE率先引入一个contains()方法,可以在节点中查找某一个节点是不是当前节点的厚点,如果 DOM Node 和 DOM Element 相一致,.contains() 将返回 true ,虽...
分类:
其他好文 时间:
2014-11-24 09:51:25
阅读次数:
161
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.Return a deep copy ...
分类:
其他好文 时间:
2014-11-23 23:01:16
阅读次数:
181
Problem Description
A wqb-number, or B-number for short, is a non-negative integer whose decimal form contains the sub- string "13" and can be divided by 13. For example, 130 and 2613 are wqb-numbe...
分类:
其他好文 时间:
2014-11-22 21:36:21
阅读次数:
212
1.问题描述1.1表结构1.2问题ref_list为id列表的字符串,需要从ref_list中找出包含指定id的数据(eg id=8)。如果实用models.objects.filter(ref_list__contains=id)无法实现精确查找models.objects.filter(ref_...
分类:
其他好文 时间:
2014-11-21 18:24:20
阅读次数:
728
ProblemPrint all valid phone numbers of length n subject to following constraints:If a number contains a 4, it should start with 4No two consecutive d...
分类:
其他好文 时间:
2014-11-21 06:54:39
阅读次数:
149
The set[1,2,3,…,n]contains a total ofn! unique permutations.By listing and labeling all of the permutations in order,We get the following sequence (ie...
分类:
其他好文 时间:
2014-11-19 23:43:08
阅读次数:
250
The set [1,2,3,…,n] contains a total of n! unique
permutations.
By listing and labeling all of the permutations in order,
We get the following sequence (ie, for n = 3):
"123""132""213""231""3...
分类:
其他好文 时间:
2014-11-19 18:43:16
阅读次数:
187
112. a^b-b^atime limit per test: 0.25 sec. memory limit per test: 4096 KBYou are given natural numbers a and b. Find a^b-b^a.InputInput contains numbe...
分类:
编程语言 时间:
2014-11-19 00:15:27
阅读次数:
252
什么是视图?视图是一系列的查询语句,在使用时被执行,用来从其他的数据集或视图中获取想要的子集(subset)或者超集(superset)。The view contains only the logicfor accessing the data, not the data itself视图能用在哪...
分类:
数据库 时间:
2014-11-18 01:35:33
阅读次数:
276
Interval
时间限制:2000 ms | 内存限制:65535 KB
难度:4
描述
There are n(1
Each query contains an integer xi(-100000
输入The first line of input is the number of test case.
For each test case,...
分类:
编程语言 时间:
2014-11-17 22:51:54
阅读次数:
204