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鼠标用户和键盘用户
a:focus{outline:none;}设置类似这样的属性后,超级链接点击后的虚线框会没掉,对于键盘用户来说就得不到焦点框。刚巧改这个的时候留神到了 在JavaScript中,IE7如果出现JSON以逗号结尾会报错,如var json = { one : 1, two : 2, // ...
分类:其他好文   时间:2014-06-27 21:46:26    阅读次数:212
hdu 3307 Description has only two Sentences (欧拉函数+快速幂)
Description has only two SentencesTime Limit: 3000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 852 Accep...
分类:其他好文   时间:2014-06-27 00:37:32    阅读次数:246
数字信号处理Day2-小波基与规范正交化
我们有这么一张灰度图64*64我们能够定义出4096个基,各自是某一位是0其它是1,在这样的情况下,假设我们传输图片,那么就相当于传输原始数据如果传到一半,网络坏了。于是,我们得到我们能够计算原图像和这图像的差距error = I - I_approx;distance = sqrt(sum(sum...
分类:其他好文   时间:2014-06-26 18:26:10    阅读次数:202
OCP-1Z0-051-题目解析-第4题
4. Which two statements are true regarding single row functions? (Choose two.)A. They a ccept only a single argument.B. They can be nested only to two...
分类:其他好文   时间:2014-06-26 17:48:22    阅读次数:216
OCP-1Z0-051-题目解析-第8题
8. View the Exhibit and examine the structure of the CUSTOMERS table.Which two tasks would require subqueries or joins to be executed in a single sta...
分类:其他好文   时间:2014-06-26 16:48:22    阅读次数:207
[LeetCode] Median of Two Sorted Arrays
There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be ...
分类:其他好文   时间:2014-06-25 14:58:16    阅读次数:210
leetcode--Edit Distance
Given two wordsword1andword2, find the minimum number of steps required to convertword1toword2. (each operation is counted as 1 step.)You have the fol...
分类:其他好文   时间:2014-06-25 11:14:15    阅读次数:218
Codeforces 126D Fibonacci Sums 求n由任意的Sum(fib)的方法数 dp
题目链接:点击打开链接 题意: 给定一个数n 问把这个数拆成多个不相同的fibonacci数 有多少种拆法 #include #include #include #include #include #include #include #include #include using namespace std; #define ll __int64 #define N 90 ll n ,m...
分类:其他好文   时间:2014-06-25 08:44:51    阅读次数:177
LeetCode: Sum Root to Leaf Numbers [129]
【题目】 Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. An example is the root-to-leaf path 1->2->3 which represents the number 123. Find the total sum of all root-to-leaf numbers. For example, 1 ...
分类:其他好文   时间:2014-06-25 07:32:27    阅读次数:209
Codeforces 8D Two Friends 三分+二分+计算几何
题目链接:点击打开链接 题意:点击打开链接 三分house到shop的距离,二分这条斜边到cinema的距离 #include #include #include #include #include #include #include #include #include using namespace std; #define ll int #define N 90 #define ...
分类:其他好文   时间:2014-06-25 07:24:38    阅读次数:247
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