GEOMETRY

Code import java.util.ArrayList; public class PenLift { int len, size; boolean[] usedS, usedV; int[] nv; // num of vertices int[][] adj1, adj2; ArrayList<Integer> xv, yv; boolean contains(int x,int y) { for (int i = 0; i < xv.size(); i++) if (xv.get(i)==x && yv.get(i)==y) return true; retur