static int fac ( int num ) {
  if ( num == 0 ) return 1 ;
  int fact = 1 ;
  for ( int i = 1 ;
  i <= num ;
  i ++ ) fact = fact * i ;
  return fact ;
}

static int fac ( int num ) { if ( num == 0 ) return 1 ; int fact = 1 ; for ( int i = 1 ; i <= num ; i ++ ) fact = fact * i ; return fact ; }
(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: (return_statement (decimal_integer_literal))) (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: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier))))) (return_statement (identifier))))