title: Breadth first search branching factor and depth
body: <p><a href="https://i.stack.imgur.com/V0o2O.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/V0o2O.png" alt="BFS"></a></p>
  
  <p>I want to know how time and memory is calculate i tried to use this O(b^d)
  but not give me the same values</p>