Substring：该方法可以有一个参数也可以有两个参数。（1） 一个参数：示例： var str=“Olive”； str.substring(3); 结果：“ve” 说明：当substring只有一个参数时，参数表示从字符串的第几位开始截取，直截取到字符串结尾。（2） 两个参数： 示例：var ...
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Web程序 时间：
2014-08-27 20:16:28
阅读次数：
229
1, In your current role, tell me about a design decision you've had to make2,Can you give me an example of a bad design decision you've made in the pa...
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其他好文 时间：
2014-08-22 19:36:29
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158
点击打开链接
Firing
Time Limit: 5000MS
Memory Limit: 131072K
Total Submissions: 7976
Accepted: 2409
Description
You’ve finally got mad at “the world’s mo...
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其他好文 时间：
2014-08-22 17:55:50
阅读次数：
264
Description
Problem F
Supermean
Time Limit: 2 second
"I have not failed. I've just found 10,000 ways that won't work."
Thomas Edison
Do you know how to compute the mean (or average...
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其他好文 时间：
2014-08-20 21:11:33
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378
1：简单概念描述
Adaboost是一种弱学习算法到强学习算法，这里的弱和强学习算法，指的当然都是分类器，首先我们需要简单介绍几个概念。
1：弱学习器：在二分情况下弱分类器的错误率会高于50%。其实任意的分类器都可以做为弱分类器，比如之前介绍的KNN、决策树、Naïve Bayes、logiostic回归和SVM都可以。这里我们采用的弱分类器是单层决策树，它是一个单节点的决策树。...
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其他好文 时间：
2014-08-18 22:07:03
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334
Now that you've solved 2sum, 3sum can be easily converted as 2sum.Also please note the while loops for i1 and i2: they are to make sure no duplicates....
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其他好文 时间：
2014-08-18 10:45:23
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202
Managing Data in Containers
So far we've been introduced to some basic Docker concepts, seen how to work with Docker
images as well as learned about networking and links between containers. In th...
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其他好文 时间：
2014-08-17 13:06:32
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271
People aren’t perfect spellers or typists. In fact, at least 7% of Google searches contain a misspelling. And the longer the query, the greater the likelihood of a typo. But even if what they’ve ...
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其他好文 时间：
2014-08-15 16:13:59
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303
#include#include#includeusing namespace std;int main(){ vector vec={0,1,1,2,3,5,8,21,55,89}; list li={0,1,1,2,3,5,8,21,55,89}; auto ve=vec.be...
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其他好文 时间：
2014-08-15 01:19:06
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328
Understanding the Space Used by ZFSBy Brian Leonard on Sep 28, 2010Until recently, I've been confused and frustrated by the zfs list output as I try t...
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其他好文 时间：
2014-08-14 10:31:38
阅读次数：
390
