update print function for BDD.plot

src/print_circuit.h

@@ -17,17 +17,27 @@ int BDD_class::print_circuit(BDD_node** BDD,int* most_influence){
  	char  plot_file_name[100];
 	sprintf(plot_file_name,"BDD.plot");
       	ofstream plot_file(plot_file_name);
-	for (int i=0;i<total_BDD_depth+1;i++){
+	for (int i=0;i<total_BDD_depth;i++){
+		plot_file <<"[";
 	  for (int j=0;j<BDD_width_each_layer[i];j++){
-			plot_file << BDD[i][j].left_node_index << "," << BDD[i][j].right_node_index;
+			plot_file << "("<<BDD[i][j].left_node_index << "," << BDD[i][j].right_node_index<<")";
 			if(j < (BDD_width_each_layer[i]-1)){
 				plot_file <<",";
 			}
 			else{
-				plot_file <<endl;
+				//plot_file <<endl;
 			}
 		}
+		plot_file <<"]"<<endl;
 	}
+	
+		plot_file <<"[";
+		for (int i=0;i<total_BDD_depth;i++){
+			plot_file<<BDD[i][0].this_layer_bit_expansion;
+			if(i<total_BDD_depth-1)
+				plot_file<<",";
+		}
+		plot_file <<"]"<<endl;
 	//finish copy
 
 /////////////////////////////////// output_module_file << "//circuit accuracy = "<<circuit_accuracy<<endl;