comefrom: <awangdev>741. Cherry Pickup_3.java
code: private void flipRow(int[] nums) {
  
          int i = 0, j = nums.length - 1;
          while (i != j) {
              int temp = nums[j];
              nums[j--] = nums[i];
              nums[i++] = temp;
          }
      }
masked: private void var_0 ( int [ ] var_1 ) {
    int var_3 = 0 , var_6 = var_1 . length - 1 ;
    while ( var_3 != var_6 ) {
      int var_7 = var_1 [ var_6 ] ;
      var_1 [ var_6 -- ] = var_1 [ var_3 ] ;
      var_1 [ var_3 ++ ] = var_7 ;
    }
  }
  