Implement sudoku puzzel 9x9 by Graph : i have a sudoku puzzel 9x9 in a text file and i wondering how can we create a Graph from sudoku puzzel.
Example puzzel

    0 0 0 0 9 8 0 4 5 
    0 0 4 3 2 0 7 0 0 
    7 9 0 5 0 0 0 3 0 
    0 0 0 9 0 0 4 0 0 
    0 4 5 0 0 2 8 0 0 
    8 7 9 6 0 4 0 1 0 
    0 3 0 0 7 9 0 6 4 
    4 5 0 2 1 3 9 0 8 
    0 8 7 4 6 5 0 0 0 
and class Graph

        class Graph
        {
            private int V; 
            private LinkedList<Integer> adj[]; 
            Graph(int v)
            {
                V = v;
               
                adj = new LinkedList[v];
                for (int i=0; i<v; ++i)
                    adj[i] = new LinkedList();
                    
                  
            }
            
            void addEdge(int v,int w)
            {
                adj[v].add(w);
                adj[w].add(v); 
            }
            public int getV()
            {
            	return V;
            }
     public LinkedList<Integer> getListAdj(int u)
        {
        	return adj[u];
        }
I write a function to read puzzel from a text file and implement it to graph

    public boolean readGraph(String input_name, int result[])
        {
              
              return true;
        }
But i stuck in this step.I hope someone can help me with this tks.
