static int pow ( int x , int y ) {
  if ( y == 0 ) return 1 ;
  int res = pow ( x , y / 2 ) ;
  if ( y % 2 == 0 ) {
    return res * res ;
  }
  else {
    return res * res * x ;
  }
}

static int pow ( int x , int y ) { if ( y == 0 ) return 1 ; int res = pow ( x , y / 2 ) ; if ( y % 2 == 0 ) { return res * res ; } else { return res * res * x ; } }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (return_statement (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (block (return_statement (binary_expression left: (identifier) right: (identifier)))) alternative: (block (return_statement (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier)))))))