comefrom: <awangdev>274.H-Index_2.java
code: public int hIndex(int[] citations) {
          if (citations == null || citations.length == 0) {
          	return 0;
          }
   		int n = citations.length;
   		Arrays.sort(citations);
          int i = 0;
   		while (i < n && citations[i] < n - i) {
   			i++;
   		}
        	return n - i;
      }
masked: public int sample_funcname ( int [ ] var_0 ) {
    if ( var_0 == null || var_0 . length == 0 ) {
      return 0 ;
    }
    int var_4 = var_0 . length ;
    Arrays . sort ( var_0 ) ;
    int var_7 = 0 ;
    while ( var_7 < var_4 && var_0 [ var_7 ] < var_4 - var_7 ) {
      var_7 ++ ;
    }
    return var_4 - var_7 ;
  }
  