@[BZHZS](/user/359492) 找到原因了吗qwq
by Lovable_Wind @ 2022-11-08 20:16:05
@[Lovable_Wind](/user/112631) 没有
by BZHZS @ 2022-11-08 20:17:58
@[BZHZS](/user/359492) 我也是日了半天刚日出来
给你几个注意的点
1.如果你想判断 0 的个数，记得前缀和要减去 l-1 而不是 l
2.在L，Q正负都有的时候，当且仅当L中有0时取0
by Lovable_Wind @ 2022-11-08 20:29:10
警钟撅烂.jpg
by Lovable_Wind @ 2022-11-08 20:29:28
@[Lovable_Wind](/user/112631) 万分感谢
by BZHZS @ 2022-11-09 17:59:06