怎么乘呢？
by yyy_o2 @ 2019-10-17 21:22:36
```cpp
j *= a[i] - ('A' - 1);
```
by ud2_ @ 2019-10-17 21:29:53
又出问题了[ ](https://www.luogu.org/record/25330233)
by yyy_o2 @ 2019-10-17 21:36:43
[呃······](https://www.luogu.org/record/25330233)
by yyy_o2 @ 2019-10-17 21:38:37
@[sjx233](/space/show?uid=206953)
by yyy_o2 @ 2019-10-17 21:39:31
上面（`a[0]` 和 `b[0]`）也要改。
另外还要把 `<=` 改成 `<`，因为下标的范围是 `0` - `x.size() - 1`。
---
（其实可以给 `j` 和 `k` 赋初值为 `1`，然后直接乘上每个字母）
by ud2_ @ 2019-10-18 07:05:34