Codeforces Round #803 (Div. 2) 1698A. XOR Mixup Solution

 

Problem Link: https://codeforces.com/contest/1698/problem/A

Solve in C++:  

///La ilaha illellahu muhammadur rasulullah

///******Bismillahir-Rahmanir-Rahim******///

///Abul Hasnat  Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh

///**********ALLAH IS ALMIGHTY************///

#include<bits/stdc++.h>

using namespace std;

int main()

{

    int n,i,t;

    cin>>t;

    while(t--)

    {

        cin>>n;

        int a[n];

        for(i=0;i<n;i++)cin>>a[i];

        cout<<a[0]<<endl;

    }

}