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LonelyInteger.java

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import java.io.*;

import java.util.*;

import java.text.*;

import java.math.*;

import java.util.regex.*;

import java.util.ArrayList;

public class LonelyInteger{

public static void main(String[] args) {

Scanner s=new Scanner(System.in);

int no_of_testcase=s.nextInt();

ArrayList<Integer> number = new ArrayList<Integer>();

String str="";

int val,n;

for(int i=0;i<no_of_testcase;i++)

{

val=s.nextInt();

number.add(val);

}

for(int j=0;j<number.size();j++)

{

n=0;

for(int k=j+1;k<number.size();k++)

{

if(number.get(j)==number.get(k))

{

number.remove(k);

k--;

n=1;

}

if(n==1){

number.remove(j);

j--;

}

for(int l=0;l<number.size();l++)

str+=number.get(l)+" ";

System.out.print(str);

}