rt，应为：

Note

Explanation of the first query:

After making first $x = 3$ and last $y = 1$ elements impossible to remove, $a$ becomes $[\times, \times, \times, 9, 5, 4, 6, 5, 7, 8, 3, 11, \times]$ (we represent $14$ as $\times$ for clarity).

Here is a strategy that removes $5$ elements (the element removed is colored in red):

• $[\times, \times, \times, 9, \textcolor{red}{5}, 4, 6, 5, 7, 8, 3, 11, \times]$
• $[\times, \times, \times, 9, 4, 6, 5, 7, 8, 3, \textcolor{red}{11}, \times]$
• $[\times, \times, \times, 9, 4, \textcolor{red}{6}, 5, 7, 8, 3, \times]$
• $[\times, \times, \times, 9, 4, 5, 7, \textcolor{red}{8}, 3, \times]$
• $[\times, \times, \times, 9, 4, 5, \textcolor{red}{7}, 3, \times]$
• $[\times, \times, \times, 9, 4, 5, 3, \times]$ (final state)

It is impossible to remove more than $5$ elements, hence the weight is $5$.