comefrom: <qiyuangong>973_K_Closest_Points_to_Origin_1.java
code: private int dist(int[] point) {
          return point[0] * point[0] + point[1] * point[1];
      }
masked: private int sample_funcname ( int [ ] var_0 ) {
    return var_0 [ 0 ] * var_0 [ 0 ] + var_0 [ 1 ] * var_0 [ 1 ] ;
  }
  