Showing source code in a post

Since I'm interested in computer science, I'll probably want to show some source code at some point in the future. There appear to be many possibilities, of which I looked at 3.

1. The obvious way would be to use <pre> like so:
   

   int fib(unsigned int n) {
     if ( n <=1 )
       return n;
     else
       return fib(n-1) + fib(n-2);
   }
   
   unsigned int a[] = 
     { fib(1), fib(2), fib(3) };
   

2. Using SyntaxHighlighter: this gives nice results but the method seems complicated and I wondered whether something simpler is available.
3. Google-code's prettify seems simple enough. Here's the input: <script src="https://google-code-prettify.googlecode.com/svn/loader/run_prettify.js"></script> <pre class="prettyprint lang-cpp"> int fib(unsigned int n) { ... </pre> And here's the result:

   int fib(unsigned int n) {
     if ( n <=1 )
       return n;
     else
       return fib(n-1) + fib(n-2);
   }
   
   unsigned int a[] = 
     { fib(1), fib(2), fib(3) };
   

   So adding one "script" line gives you syntax coloring and a box around the code.

I guess, I'll use (1) or (3).