# Geeksforgeeks Solution For " Finding the numbers "

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Problem :- Finding the numbers

Solution :-

#include<iostream>
#include<algorithm>
using namespace std;
int main()
{
long long int t,x,n,i,j,y;
cin>>t;
while(t--)
{
cin>>n;
x = 2*n+2;
long long int a[x];
for(i=0;i<x;i++)
{
cin>>a[i];
}
sort(a,a+x);
for(i=0;i<x;i=i+2)
{
y = a[i]^a[i+1];
if(y!=0)
{
cout<<a[i]<<" ";
i=i-1;
}
}
cout<<endl;
}
}

Output:-

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#### post written by: Ghanendra Yadav

Hi, I’m Ghanendra Yadav, SEO Expert, Professional Blogger, Programmer, and UI Developer. Get a Solution of More Than 500+ Programming Problems, and Practice All Programs in C, C++, and Java Languages. Get a Competitive Website Solution also Ie. Hackerrank Solutions and Geeksforgeeks Solutions. If You Are Interested to Learn a C Programming Language and You Don't Have Experience in Any Programming, You Should Start with a C Programming Language, Read: List of Format Specifiers in C.