public static long maxbit ( long n ) {
  if ( n == 0 ) {
    return 1 ;
  }
  long k = 1 , ans = 0 ;
  for ( int i = 0 ;
  i <= 60 ;
  i ++ ) {
    if ( ( n & k ) > 0 ) {
      ans = k ;
    }
    k = k * 2 ;
  }
  return ans * 2 ;
}

public static long maxbit ( long n ) { if ( n == 0 ) { return 1 ; } long k = 1 , ans = 0 ; for ( int i = 0 ; i <= 60 ; i ++ ) { if ( ( n & k ) > 0 ) { ans = k ; } k = k * 2 ; } return ans * 2 ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (return_statement (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) 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: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (return_statement (binary_expression left: (identifier) right: (decimal_integer_literal)))))