@@ -0,0 +1,750 @@
+package io.sigpipe.sing.graph;%0A%0Apublic class GraphMetrics %7B%0A%0A    private long vertices;%0A    private long leaves;%0A%0A    public GraphMetrics() %7B%0A%0A    %7D%0A%0A    public GraphMetrics(int vertices, int leaves) %7B%0A        this.vertices = vertices;%0A        this.leaves = leaves;%0A    %7D%0A%0A    public void setVertexCount(long vertices) %7B%0A        this.vertices = vertices;%0A    %7D%0A%0A    public void setLeafCount(long leaves) %7B%0A        this.leaves = leaves;%0A    %7D%0A%0A    public void addVertices(long vertices) %7B%0A        this.vertices += vertices;%0A    %7D%0A%0A    public void addLeaves(long leaves) %7B%0A        this.leaves += leaves;%0A    %7D%0A%0A    public long getVertexCount() %7B%0A        return this.vertices;%0A    %7D%0A%0A    public long getLeafCount() %7B%0A        return this.leaves;%0A    %7D%0A%7D%0A

Add general GraphMetrics class