C++ :

#include <stdio.h>
#include <iostream>
using namespace std ;

class Jack
{
    public:
        void play() ;
    protected:
        int a[ 1005 ] , t , n , s1 , s2 ;
};

void Jack::play()
{
	//freopen( "out.txt" , "w" , stdout ) ;
    cin >> t ;  
    while( t-- ) {
        s1 = s2 = 0 ;
        cin >> n ;
        for( int i = 1 ; i <= n ; i++ ) {
            scanf( "%d" , &a[ i ] ) ;
            if( i % 2 ) s1 += a[ i ] ;
            else s2 += a[ i ] ;
        }
        if( s1 != s2 ) {
            cout << "No\n" ;
            continue ;
        }
        int ok = 0 ;
        for( int i = 1 ; i <= n / 2 ; i++ ) if( a[ i ] != a[ n - i + 1 ] ) {
            ok = 1 ;
            break ;
        }
        if( !ok ) cout << "No\n" ;
        else cout << "Yes\n" ; 
    }
}
int main()
{
    Jack jack ;
    jack.play() ;
    return 0 ;
}