comefrom: <awangdev>169. Majority Element_2.java
code: public int majorityElement(int[] nums) {
          if (nums == null || nums.length == 0) {
              return -1;
          }
          Arrays.sort(nums);
          return nums[nums.length / 2];
      }
masked: public int sample_funcname ( int [ ] var_0 ) {
    if ( var_0 == null || var_0 . length == 0 ) {
      return - 1 ;
    }
    Arrays . sort ( var_0 ) ;
    return var_0 [ var_0 . length / 2 ] ;
  }
  