fork download
copy 
  1. import java.util.*;
  2. class Main {
  3.     public static void main(String[] args) {
  4.         Scanner sc = new Scanner(System.in);
  5.         int tc = sc.nextInt();
  6.         while(tc-->0){
  7.         int n = sc.nextInt();
  8.         int[] v = new int[n];
  9.         for(int i=0;i<n;i++){
  10.             v[i] = sc.nextInt();
  11.         }
  12.         Arrays.sort(v);
  13.         int x=v[0];
  14.         int c=1;
  15.         for(int i=0;i<n-1;i++){
  16.             if(v[i]==v[i+1]){
  17.                 c++;
  18.             }
  19.             else{
  20.                 if(c%2!=0){
  21.                     System.out.println(x);
  22.                 }
  23.                 if(v[i+1]==n-1){
  24.                     System.out.println(v[i+1]);
  25.                 }
  26.                 x=v[i+1];
  27.                 c=1;
  28.             }
  29.         }
  30.     }
  31.  
  32.     }
  33.  
  34. }
Success #stdin #stdout 0.13s 45284KB
comments (?)
stdin
copy 
1
5
2
2 
3
5
3
stdout
copy 
Standard output is empty
https://ideone.com/ClrPP6
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!