static int Max_Xor ( int arr [ ] , int n , int k ) {
  int maxXor = Integer . MIN_VALUE ;
  for ( int i = 0 ;
  i < ( 1 << n ) ;
  i ++ ) {
    if ( Integer . bitCount ( i ) == k ) {
      int cur_xor = 0 ;
      for ( int j = 0 ;
      j < n ;
      j ++ ) {
        if ( ( i & ( 1 << j ) ) == 0 ) cur_xor = cur_xor ^ arr [ j ] ;
      }
      maxXor = Math . max ( maxXor , cur_xor ) ;
    }
  }
  return maxXor ;
}

static int Max_Xor ( int arr [ ] , int n , int k ) { int maxXor = Integer . MIN_VALUE ; for ( int i = 0 ; i < ( 1 << n ) ; i ++ ) { if ( Integer . bitCount ( i ) == k ) { int cur_xor = 0 ; for ( int j = 0 ; j < n ; j ++ ) { if ( ( i & ( 1 << j ) ) == 0 ) cur_xor = cur_xor ^ arr [ j ] ; } maxXor = Math . max ( maxXor , cur_xor ) ; } } return maxXor ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (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: (field_access object: (identifier) field: (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: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier)))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (identifier))) consequence: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (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: (block (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier))))) right: (decimal_integer_literal))) consequence: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier)))))))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier))))))))) (return_statement (identifier))))