I have a graph and I want to find all shortest paths between two nodes. I've found a shortest path between two nodes by BFS. However, it just gives me one of the shortest paths if there exists one more than.
How could I get all of them using BFS?
I've implement my code from well-known BFS pseudocode.
Also, I have a adjacency list vector which holds adjacency vertices for all nodes.
A simpler way is to find all paths from source to destination using dfs. Now find the shortest paths among these paths. Here is a sudo code:
dfs(p,len)
if(visited[p])
return
if(p== destination)
paths.append(len)
return
visited[p]=1
for each w adjacent to p
dfs(w,len+1)
visited[p]=0
You can find the path by maintaining an array for paths. I will leave that to you as an assignment
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