enter image description here

So from the above diagram, we can move either right or down. So a binary tree is built that way. It's written "If we had intermingled common nodes across different branches, we would have got a graph instead" I am unable to visualize how a graph can be formed out of this. Will it be a graph with only 2 columns? Please help

Source: https://loveforprogramming.quora.com/Backtracking-Memoization-Dynamic-Programming

  • $\begingroup$ Welcome to Computer Science! If the diagram comes from an online course or article, could you please add a URL in the question by using the edit button? If it comes from a book or a paper, a reference. Besides paying proper attribute to the original source, all that information also motivates and helps people answer your question faster and better. $\endgroup$ – Apass.Jack Oct 26 '18 at 0:35
  • $\begingroup$ @Apass.Jack Sorry bout that! Added the reference $\endgroup$ – Arjun Hegde Oct 26 '18 at 0:48

If you just want the visualization, then have a look at this Graph visualization of above tree


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