comefrom: <awangdev>Subsets II_1.java
code: private void dfs(List<List<Integer>> result, List<Integer> list, int[] nums, int depth) {
  
          for (int i = depth; i < nums.length; i++) {
              if (i > depth && nums[i] == nums[i - 1]) continue; 
              list.add(nums[i]);
              result.add(new ArrayList<>(list));
              dfs(result, list, nums, i + 1);
              list.remove(list.size() - 1);
          }
      }
masked: private void sample_funcname ( List < List < Integer >> result , List < Integer > list , int [ ] nums , int depth ) {
    for ( int i = depth ;
    i < nums . length ;
    i ++ ) {
      if ( i > depth && nums [ i ] == nums [ i - 1 ] ) continue ;
      list . add ( nums [ i ] ) ;
      result . add ( new ArrayList < > ( list ) ) ;
      dfs ( result , list , nums , i + 1 ) ;
      list . remove ( list . size ( ) - 1 ) ;
    }
  }
  