public static boolean isPossible ( int [ ] arr , int n , int x , int y ) {
  int gcd = arr [ 0 ] ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) gcd = _gcd ( gcd , arr [ i ] ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( ! isDivisible ( arr [ i ] / gcd , x , y ) ) return false ;
  }
  return true ;
}

public static boolean isPossible ( int [ ] arr , int n , int x , int y ) { int gcd = arr [ 0 ] ; for ( int i = 1 ; i < n ; i ++ ) gcd = _gcd ( gcd , arr [ i ] ) ; for ( int i = 0 ; i < n ; i ++ ) { if ( ! isDivisible ( arr [ i ] / gcd , x , y ) ) return false ; } return true ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (integral_type) dimensions: (dimensions)) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (array_access array: (identifier) index: (decimal_integer_literal)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (identifier) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (array_access array: (identifier) index: (identifier))))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (unary_expression operand: (method_invocation name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)) (identifier) (identifier))))) consequence: (return_statement (false))))) (return_statement (true))))