title: Find a path with BFS in a graph
body: <p>I want to find a path between two nodes in a graph with a bfs. I wrote a function that visit all nodes in the correct order (not sure if it works, but it seems right to me) but I need to store the the path (with a list of all edges that makes the path) and I don't know how to do it :\</p>
  
  <p>Can someone help me ? Thanks in advance :)</p>