Enabling Lightbox on Google's Blogger

It's fairly simple. Just add a simple JavaScript to the template next to the Lightbox import.

<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
jQuery.noConflict();
jQuery(document).ready(function() {
jQuery('#Blog1 a img[class!=icon-action]').parent().attr('rel','lightbox[imgs]');
jQuery('#Blog1 a img[class!=icon-action]').parent().attr('title','© Žan Kafol');
});
</script>
<script type="text/javascript" src="js/prototype.js"></script>
<script type="text/javascript" src="js/scriptaculous.js?load=effects,builder"></script>
<script type="text/javascript" src="js/lightbox.js"></script>
<link rel="stylesheet" href="css/lightbox.css" type="text/css" media="screen">

JavaScript: escape()

When you're sending a string through a GET request with javascript, you should obviously URL encode the string to ensure all characters get transmitted. The escape() function in javascript works fairly well, even when you're sending UTF-8 characters. But the + character is interpreted as a space in the GET request, so you need to handle it manually. Here's how I do it:

 msg = msg.replace(/\+/g,'%2B'); 
 geturl('ajax.get.php?msg='+escape(msg));

First, you do a global regex match for the plus character, replace it with it's url encoded equivalent, and then you url encode the string with escape().

Example usage of Facebook.streamPublish()

DUE TO FREQUENT FACEBOOK API CHANGES THIS ARTICLE IS OUTDATED.

You can force streamPublish dialog from within the href bar in the browser. Also note the application ID prefix in the functions. More detailed code description is superfluous. javascript:c=9999999;h='Click Challenge';l='http://apps.facebook.com/click-challenge-en/?ref_6w=f_clicks';a126752370697733_Facebook.streamPublish('',{'name':h,'href':l,'caption':'{*actor*} made '+(c/1)+' clicks in 10 seconds.','properties':{'Speed':{'text':(c/10)+' clicks/sec','href':l}},'media':[{'type':'image','src':'http://w6.6waves.com/my-app/data/126752370697733/logo.gif','href':l}]},[{'text':h,'href':l}]);

Solution for problem code FCTRL on SPOJ

#include <stdio.h>

int main() {
int s;
scanf("%d",&s);
while(s--) {
int r,c,x=0,p=1;
scanf("%d",&c);
do x += (r = c/(p*=5)); while(r);
printf("%d\n",x);
}
return 0;
}

PHP: calculate distance between two points

Each point is an one-dimensional array, each value in the array is a coordinate, so dimension of coordinates in this function is arbitriary.

 /*
 * Calculates Euclidian distance between two points in p-norm
 * Points $p1 and $p2 are Nx1 matrices
 */
 function euclidian_distance($p1,$p2) {
  if(count($p1) != count($p2)) return false;
  $distances = 0;
  
  $p1 = array_values($p1);
  $p2 = array_values($p2);
  
  $norm = count($p2);
  
  for($i=0;$i<$norm;$i++) $distances += pow(abs($p1[$i]-$p2[$i]),2);
  
  return pow($distances,1/2);
 }