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_2 = 0 , var_3 = var_1 . length - 1 ;
    while ( var_2 != var_3 ) {
      int var_4 = var_1 [ var_3 ] ;
      var_1 [ var_3 -- ] = var_1 [ var_2 ] ;
      var_1 [ var_2 ++ ] = var_4 ;
    }
  }
  