static int getMissingNo ( int a [ ] , int n ) {
  int total = 1 ;
  for ( int i = 2 ;
  i <= ( n + 1 ) ;
  i ++ ) {
    total += i ;
    total -= a [ i - 2 ] ;
  }
  return total ;
}

static int getMissingNo ( int a [ ] , int n ) { int total = 1 ; for ( int i = 2 ; i <= ( n + 1 ) ; i ++ ) { total += i ; total -= a [ i - 2 ] ; } return total ; }
(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))) body: (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: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))))) (return_statement (identifier))))