<awangdev>253. Meeting Rooms II_1.java
private int[] extract(int[][] intervals, int index) {

        int[] array = new int[intervals.length];
        for (int i = 0; i < intervals.length; i++) {
            array[i] = intervals[i][index];
        }
        Arrays.sort(array);
        return array;
    }
private int [ ] sample_funcname ( int [ ] [ ] var_0 , int var_1 ) {
  int [ ] var_3 = new int [ var_0 . length ] ;
  for ( int var_5 = 0 ;
  var_5 < var_0 . length ;
  var_5 ++ ) {
    var_3 [ var_5 ] = var_0 [ var_5 ] [ var_1 ] ;
  }
  Arrays . sort ( var_3 ) ;
  return var_3 ;
}
