static int findMissing ( int arr [ ] , int n ) {
  int diff = ( arr [ n - 1 ] - arr [ 0 ] ) / n ;
  return findMissingUtil ( arr , 0 , n - 1 , diff ) ;
}

static int findMissing ( int arr [ ] , int n ) { int diff = ( arr [ n - 1 ] - arr [ 0 ] ) / n ; return findMissingUtil ( arr , 0 , n - 1 , diff ) ; }
(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: (binary_expression left: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (array_access array: (identifier) index: (decimal_integer_literal)))) right: (identifier)))) (return_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (decimal_integer_literal) (binary_expression left: (identifier) right: (decimal_integer_literal)) (identifier))))))