title: Looking for an open source Traveling Salesman function / library in c / c++?
body: <p>I know there are a few different <a href="http://en.wikipedia.org/wiki/Traveling_salesman_problem" rel="nofollow noreferrer">Traveling Salesman</a> projects out there and I've played with <a href="http://www.akira.ruc.dk/~keld/research/LKH/" rel="nofollow noreferrer">LKH</a> a bit, but I was wondering if anyone had any recommendations on any other ones?</p>
  
  <p>My project is GPL'ed so I would need something that is compatible with that license.</p>
  
  <p><img src="https://i.stack.imgur.com/6WnwE.gif" alt="Input"> <img src="https://i.stack.imgur.com/lAUwq.gif" alt="Output"></p>