static boolean lineExists ( int x [ ] , int y [ ] , int v [ ] , int n ) {
  int size = ( 2 * MAX ) + 1 ;
  long [ ] arr = new long [ size ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    arr [ x [ i ] + MAX ] += v [ i ] ;
  }
  for ( int i = 1 ;
  i < size ;
  i ++ ) arr [ i ] += arr [ i - 1 ] ;
  if ( arr [ size - 1 ] == 0 ) return true ;
  if ( arr [ size - 1 ] - arr [ 0 ] == 0 ) return true ;
  for ( int i = 1 ;
  i < size - 1 ;
  i ++ ) {
    if ( arr [ i - 1 ] == arr [ size - 1 ] - arr [ i - 1 ] ) return true ;
    if ( arr [ i - 1 ] == arr [ size - 1 ] - arr [ i ] ) return true ;
    if ( arr [ i ] == arr [ size - 1 ] - arr [ i ] ) return true ;
  }
  if ( arr [ size - 2 ] == 0 ) return true ;
  return false ;
}

static boolean lineExists ( int x [ ] , int y [ ] , int v [ ] , int n ) { int size = ( 2 * MAX ) + 1 ; long [ ] arr = new long [ size ] ; for ( int i = 0 ; i < n ; i ++ ) { arr [ x [ i ] + MAX ] += v [ i ] ; } for ( int i = 1 ; i < size ; i ++ ) arr [ i ] += arr [ i - 1 ] ; if ( arr [ size - 1 ] == 0 ) return true ; if ( arr [ size - 1 ] - arr [ 0 ] == 0 ) return true ; for ( int i = 1 ; i < size - 1 ; i ++ ) { if ( arr [ i - 1 ] == arr [ size - 1 ] - arr [ i - 1 ] ) return true ; if ( arr [ i - 1 ] == arr [ size - 1 ] - arr [ i ] ) return true ; if ( arr [ i ] == arr [ size - 1 ] - arr [ i ] ) return true ; } if ( arr [ size - 2 ] == 0 ) return true ; return false ; }
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