comefrom: <awangdev>741. Cherry Pickup_2.java
code: private void updateGrid(int[][] grid, List<int[]> path) {
  
          for (int[] pos : path) {
              grid[pos[0]][pos[1]] = 0;
          }
      }
masked: private void var_0 ( int [ ] [ ] var_1 , List < int [ ] > var_3 ) {
    for ( int [ ] var_4 : var_3 ) {
      var_1 [ var_4 [ 0 ] ] [ var_4 [ 1 ] ] = 0 ;
    }
  }
  