Codeforces Round #772 (Div. 2) 1635B - Avoid Local Maximums Solution

 

Solution in C++: 

///La ilaha illellahu muhammadur rasulullah

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

///Abul Hasnat  Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh

#include<iostream>

using namespace std;

int main()

{

    long long int  test,num,sum,k,value;

    cin>>test;

    while(test--)

    {

        cin>>num;

        sum=0;

        for(k=1; k<=num; k++)

        {

            cin>>value;

            sum|=value;

        }

        cout<<sum<<endl;

    }

    return 0;

}