diff --git a/src/GraphClasses/Complete.java b/src/GraphClasses/Complete.java
index 8efa0d0c46d4bae9b17fbefdd684bf5df5403404..d9cb0599c2edd6d54e20c6fc7fc63ad7c4b01c8e 100644
--- a/src/GraphClasses/Complete.java
+++ b/src/GraphClasses/Complete.java
@@ -1,19 +1,17 @@
 package GraphClasses;
-import Graph.* ;
+
+import Graph.*;
 
 public class Complete {
 
-	public Graph graph;
-	
-	public Complete(int order) {
-		this.graph = new Graph(order);
-		for(int i = 0; i < order; i++)
-			for (int j = i+1; j < order; j++)
-				graph.addEdge(new Edge(i,j,0));
-		
-	}
-	
-	
-	
-	
+    public Graph graph;
+
+    public Complete(int order) {
+        this.graph = new Graph(order);
+        for (int i = 0; i < order; i++)
+            for (int j = i + 1; j < order; j++)
+                graph.addEdge(new Edge(i, j, 0));
+
+    }
+
 }
diff --git a/src/GraphClasses/Grid.java b/src/GraphClasses/Grid.java
index b5a4e959626a9f5f40a75250b5f183d76e4d5f6e..a0d94570ca66baf21ba3c3ee582584b5f426825c 100644
--- a/src/GraphClasses/Grid.java
+++ b/src/GraphClasses/Grid.java
@@ -1,4 +1,5 @@
 package GraphClasses;
+
 import Graph.*;
 
 import java.util.BitSet;
@@ -6,93 +7,93 @@ import java.util.BitSet;
 
 public class Grid {
 
-	int width;
-	int height;
-	int maxVertex;
-	
-	public Graph graph;
-	
-	public int abscissaOfVertex(int vertex) {
-		return vertex % width;
-	}
-	
-	public int ordinateOfVertex(int vertex) {
-		return vertex / width;
-	}
-	
-	private int vertexOfCoordinate(int abscissa, int ordinate) {
-		return ordinate * width + abscissa;
-	}
-	
-	public Grid(int width, int height) {
-		this.width = width;
-		this.height = height;
-		maxVertex = width * height - 1;
-		graph = new Graph(maxVertex);
-		for (int i = 0; i < width; i++) {
-			for (int j = 0; j < height; j++) {
-				if (i < width - 1)
-					graph.addEdge(new Edge(
-									vertexOfCoordinate(i,j),
-									vertexOfCoordinate(i+1,j),
-									0.0
-							));
-				if (j < height - 1)
-					graph.addEdge(new Edge(
-									vertexOfCoordinate(i,j),
-									vertexOfCoordinate(i,j+1),
-									0.0
-						));
-			}
-		}
-		
-	}
-
-	
-	public boolean isHorizontal(Edge e) {
-		return Math.abs(e.source - e.dest) == 1;
-	}
-	
-	public boolean isVertical(Edge e) {
-		return Math.abs(e.source - e.dest) == width;
-	}
-	
-	
-	private void drawLine(int h, BitSet right) {
-		for (int i = 0; i < width - 1; i++) {
-			System.out.print("o");
-			if (right.get(vertexOfCoordinate(i,h))) System.out.print("--");
-			else System.out.print("  ");
-		}
-		System.out.println("o");
-	}
-	
-	private void drawInterline(int h, BitSet up) {
-		for (int i = 0; i < width; i++) {
-			if (up.get(vertexOfCoordinate(i,h))) System.out.print("|");
-			else System.out.print(" ");
-			if (i < width-1) System.out.print("  ");
-		}
-		System.out.println();
-	}
-
-	public void drawSubgrid(Iterable<Edge> edges) {
-		BitSet up = new BitSet(maxVertex);
-		BitSet right = new BitSet(maxVertex);
-		for (Edge e : edges) {
+    int width;
+    int height;
+    int maxVertex;
+
+    public Graph graph;
+
+    public int abscissaOfVertex(int vertex) {
+        return vertex % width;
+    }
+
+    public int ordinateOfVertex(int vertex) {
+        return vertex / width;
+    }
+
+    private int vertexOfCoordinate(int abscissa, int ordinate) {
+        return ordinate * width + abscissa;
+    }
+
+    public Grid(int width, int height) {
+        this.width = width;
+        this.height = height;
+        maxVertex = width * height - 1;
+        graph = new Graph(maxVertex + 1);
+        for (int i = 0; i < width; i++) {
+            for (int j = 0; j < height; j++) {
+                if (i < width - 1)
+                    graph.addEdge(new Edge(
+                            vertexOfCoordinate(i, j),
+                            vertexOfCoordinate(i + 1, j),
+                            0.0
+                    ));
+                if (j < height - 1)
+                    graph.addEdge(new Edge(
+                            vertexOfCoordinate(i, j),
+                            vertexOfCoordinate(i, j + 1),
+                            0.0
+                    ));
+            }
+        }
+
+    }
+
+
+    public boolean isHorizontal(Edge e) {
+        return Math.abs(e.source - e.dest) == 1;
+    }
+
+    public boolean isVertical(Edge e) {
+        return Math.abs(e.source - e.dest) == width;
+    }
+
+
+    private void drawLine(int h, BitSet right) {
+        for (int i = 0; i < width - 1; i++) {
+            System.out.print("o");
+            if (right.get(vertexOfCoordinate(i, h))) System.out.print("--");
+            else System.out.print("  ");
+        }
+        System.out.println("o");
+    }
+
+    private void drawInterline(int h, BitSet up) {
+        for (int i = 0; i < width; i++) {
+            if (up.get(vertexOfCoordinate(i, h))) System.out.print("|");
+            else System.out.print(" ");
+            if (i < width - 1) System.out.print("  ");
+        }
+        System.out.println();
+    }
+
+    public void drawSubgrid(Iterable<Edge> edges) {
+        BitSet up = new BitSet(maxVertex);
+        BitSet right = new BitSet(maxVertex);
+        for (Edge e : edges) {
 //			System.out.println(e.fromVertex + " -- " + e.toVertex);
-			if (isHorizontal(e))
-				right.set(Math.min(e.source,e.dest));
-			if (isVertical(e))
-				up.set(Math.min(e.source,e.dest));
-		}
-		
-		for (int j = 0; j < height; j++) {
-			drawLine(j,right);
-			if (j < height - 1) drawInterline(j,up);
-		}
-		
-	}
-
-	
+            if (isHorizontal(e))
+                right.set(Math.min(e.source, e.dest));
+            if (isVertical(e))
+                up.set(Math.min(e.source, e.dest));
+        }
+
+        for (int j = 0; j < height; j++) {
+            drawLine(j, right);
+            if (j < height - 1) drawInterline(j, up);
+        }
+
+    }
+
+
 }
diff --git a/src/Main.java b/src/Main.java
index b3b6173a98f3794fd6a2a6ad496ffa1e3cad2a58..d82da9de81ad64b5b1dfd7eecc0ec871d328b160 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -39,10 +39,10 @@ public class Main {
 
         grid = new Grid(1920 / 11, 1080 / 11);
         Graph graph = grid.graph;
-//		Graph graph = new Complete(400).graph;
-//		Graph graph = new ErdosRenyi(1_000, 100).graph;
-//		Graph graph = new Lollipop(1_000).graph;
-        return grid.graph;
+        //Graph graph = new Complete(400).graph;
+        //Graph graph = new ErdosRenyi(1_000, 100).graph;
+        //Graph graph = new Lollipop(1_000).graph;
+        return graph;
     }
 
     public static ArrayList<Edge> genTree(Graph graph) {
@@ -54,6 +54,7 @@ public class Main {
         // Non-random BFS
         ArrayList<Arc> randomArcTree =
                 BreadthFirstSearch.generateTree(graph, 0);
+
         randomTree = new ArrayList<>();
         for (Arc a : randomArcTree) randomTree.add(a.support);
         return randomTree;