comefrom: <awangdev>767. Reorganize String_3.java
code: private PriorityQueue<int[]> buildCharQueue (Map<Character, Integer> map) {
  
          PriorityQueue<int[]> queue = new PriorityQueue<>((a,b) -> b[1] - a[1]);
          for (char c : map.keySet()) {
              queue.add(new int[]{c, map.get(c)});
          }
          return queue;
      }
masked: private PriorityQueue < int [ ] > var_0 ( Map < Character , Integer > var_4 ) {
    PriorityQueue < int [ ] > var_9 = new PriorityQueue < > ( ( var_8 , var_6 ) -> var_6 [ 1 ] - var_8 [ 1 ] ) ;
    for ( char var_11 : var_4 . keySet ( ) ) {
      var_9 . add ( new int [ ] {
        var_11 , var_4 . get ( var_11 ) }
        ) ;
      }
      return var_9 ;
    }
    