static int smallesteSubstr_maxDistictChar ( String str ) {
  int n = str . length ( ) ;
  int max_distinct = max_distinct_char ( str , n ) ;
  int minl = n ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    for ( int j = 0 ;
    j < n ;
    j ++ ) {
      String subs = null ;
      if ( i < j ) subs = str . substring ( i , j ) ;
      else subs = str . substring ( j , i ) ;
      int subs_lenght = subs . length ( ) ;
      int sub_distinct_char = max_distinct_char ( subs , subs_lenght ) ;
      if ( subs_lenght < minl && max_distinct == sub_distinct_char ) {
        minl = subs_lenght ;
      }
    }
  }
  return minl ;
}

static int smallesteSubstr_maxDistictChar ( String str ) { int n = str . length ( ) ; int max_distinct = max_distinct_char ( str , n ) ; int minl = n ; for ( int i = 0 ; i < n ; i ++ ) { for ( int j = 0 ; j < n ; j ++ ) { String subs = null ; if ( i < j ) subs = str . substring ( i , j ) ; else subs = str . substring ( j , i ) ; int subs_lenght = subs . length ( ) ; int sub_distinct_char = max_distinct_char ( subs , subs_lenght ) ; if ( subs_lenght < minl && max_distinct == sub_distinct_char ) { minl = subs_lenght ; } } } return minl ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) (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 (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 (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (null_literal))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier))))) alternative: (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (binary_expression left: (identifier) right: (identifier)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))))))))) (return_statement (identifier))))