static int sizeSubSet ( int a [ ] , int k , int n ) {
  Arrays . sort ( a ) ;
  HashMap < Integer , Integer > s = new HashMap < Integer , Integer > ( ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( a [ i ] % k != 0 || s . get ( a [ i ] / k ) == null ) s . put ( a [ i ] , s . get ( a [ i ] ) == null ? 1 : s . get ( a [ i ] ) + 1 ) ;
  }
  return s . size ( ) ;
}

static int sizeSubSet ( int a [ ] , int k , int n ) { Arrays . sort ( a ) ; HashMap < Integer , Integer > s = new HashMap < Integer , Integer > ( ) ; for ( int i = 0 ; i < n ; i ++ ) { if ( a [ i ] % k != 0 || s . get ( a [ i ] / k ) == null ) s . put ( a [ i ] , s . get ( a [ i ] ) == null ? 1 : s . get ( a [ i ] ) + 1 ) ; } return s . size ( ) ; }
(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)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) arguments: (argument_list)))) (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: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)) right: (decimal_integer_literal)) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)))) right: (null_literal)))) consequence: (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)) (ternary_expression condition: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)))) right: (null_literal)) consequence: (decimal_integer_literal) alternative: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier)))) right: (decimal_integer_literal))))))))) (return_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))