[《满江红》](https://www.luogu.com.cn/record/127475998)
by _cheems_ckr_ @ 2023-10-04 13:20:51
悬关
by _cheems_ckr_ @ 2023-10-04 13:21:19
@[DadCelL](/user/885777)
再开一个数组存像素点的灰度，更新 $a$ 会影响到后续的 $a$ 的值。
by WxjzKK @ 2023-10-04 13:24:00
不好意思刚刚看错了
by WxjzKK @ 2023-10-04 13:25:39
@[DadCelL](/user/885777)
round 函数里面，你多加了一个 $a_{i,j-1}$。
by WxjzKK @ 2023-10-04 13:31:13
@WxjzKK[啊这](https://www.luogu.com.cn/record/129178155)
by _cheems_ckr_ @ 2023-10-13 21:44:07