解释:应当先向上走,如果A无毒,就向下走到终点。否则向右走过B。(所以是可能重复经过节点的)
by 传奇英雄 @ 2020-06-15 09:06:34
#2
输入
```cpp
5 5 3 2
A@CAA
B.#B.
BBCA.
.A...
B..$.
1 6 7 7 1 9 3 2
```
输出:
```
0.861
```
by 传奇英雄 @ 2020-06-15 09:08:09
最后祝洛谷7周年生日快乐!!(距离进省队还有4天)
by 传奇英雄 @ 2020-06-15 09:09:12
@[传奇英雄](/user/61602) 哇塞您都进省队辽
by CoL_qwq @ 2020-06-15 09:11:38
太厉害辽
by CoL_qwq @ 2020-06-15 09:11:47
stO
by Imakf @ 2020-06-15 09:14:06
o,orz
by FZzzz @ 2020-06-15 09:16:10
orzzzzz
by xhQYm @ 2020-06-15 09:25:37
sto lz进省队
by novax @ 2020-06-15 09:28:40
说起来,河南的初中生咋这么少啊/fad
by FZzzz @ 2020-06-15 09:30:44