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A12836 | You Are Given a WASD-string...

时间限制1s
内存限制256MB
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题目描述

You have a string $s$ — a sequence of commands for your toy robot. The robot is placed in some cell of a rectangular grid. He can perform four commands:

- 'W' — move one cell up;
- 'S' — move one cell down;
- 'A' — move one cell left;
- 'D' — move one cell right.

Let $Grid(s)$ be the grid of minimum possible area such that there is a position in the grid where you can place the robot in such a way that it will not fall from the grid while running the sequence of commands $s$ . For example, if $s = \text{DSAWWAW}$ then $Grid(s)$ is the $4 \times 3$ grid:

1. you can place the robot in the cell $(3, 2)$ ;
2. the robot performs the command 'D' and moves to $(3, 3)$ ;
3. the robot performs the command 'S' and moves to $(4, 3)$ ;
4. the robot performs the command 'A' and moves to $(4, 2)$ ;
5. the robot performs the command 'W' and moves to $(3, 2)$ ;
6. the robot performs the command 'W' and moves to $(2, 2)$ ;
7. the robot performs the command 'A' and moves to $(2, 1)$ ;
8. the robot performs the command 'W' and moves to $(1, 1)$ .

![](/uploads/acgo/image/5b5387df3655b567_775b328b6086.jpeg)You have $4$ extra letters: one 'W', one 'A', one 'S', one 'D'. You'd like to insert at most one of these letters in any position of sequence $s$ to minimize the area of $Grid(s)$ .

What is the minimum area of $Grid(s)$ you can achieve?

输入格式

The first line contains one integer $T$ ( $1 \le T \le 1000$ ) — the number of queries.

Next $T$ lines contain queries: one per line. This line contains single string $s$ ( $1 \le |s| \le 2 \cdot 10^5$ , $s_i \in \{\text{W}, \text{A}, \text{S}, \text{D}\}$ ) — the sequence of commands.

It's guaranteed that the total length of $s$ over all queries doesn't exceed $2 \cdot 10^5$ .

输出格式

Print $T$ integers: one per query. For each query print the minimum area of $Grid(s)$ you can achieve.

输入输出样例

输入 #1
3
DSAWWAW
D
WA
输出 #1
8
2
4
C++ 编辑器
输入
输出