import java.util.ArrayList; import java.util.Collections; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc=new Scanner(System.in); int n=sc.nextInt(); ArrayList A=new ArrayList(); ArrayList in=new ArrayList();//交集 ArrayList un=new ArrayList();;//并集 ArrayList yu=new ArrayList();//余集 for (int i = 0; i < n; i++) { A.add(sc.nextInt()); } un.addAll(A); yu.addAll(A); int m=sc.nextInt(); for (int i = 0; i <m; i++) { int b=sc.nextInt(); if(A.contains(b)){in.add(b); yu.remove(yu.indexOf(b));} else un.add(b); } Collections.sort(in);Collections.sort(un);Collections.sort(yu); for (int i = 0; i < in.size(); i++) { if(i!=in.size()-1)System.out.print(in.get(i)+" "); else System.out.println(in.get(in.size()-1)); } if(in.size()==0) System.out.println(); for (int i = 0; i < un.size(); i++) { if(i!=un.size()-1) System.out.print(un.get(i)+" "); else System.out.println(un.get(un.size()-1)); } for (int i = 0; i < yu.size(); i++) { if(i!=yu.size()-1) System.out.print(yu.get(i)+" "); else System.out.println(yu.get(yu.size()-1)); } if(yu.size()==0) System.out.println(); } }
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