static int countLattice ( int r ) {
  if ( r <= 0 ) return 0 ;
  int result = 4 ;
  for ( int x = 1 ;
  x < r ;
  x ++ ) {
    int ySquare = r * r - x * x ;
    int y = ( int ) Math . sqrt ( ySquare ) ;
    if ( y * y == ySquare ) result += 4 ;
  }
  return result ;
}

static int countLattice ( int r ) { if ( r <= 0 ) return 0 ; int result = 4 ; for ( int x = 1 ; x < r ; x ++ ) { int ySquare = r * r - x * x ; int y = ( int ) Math . sqrt ( ySquare ) ; if ( y * y == ySquare ) result += 4 ; } return result ; }
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