for (int i = 1; i <= a; i++) //上左两条边置为1
{
if (x[i - 1][0] != -1 && x[i][0] != -1)x[i][0] = 1;
else x[i][0] = -1;
}
for (int i = 1; i <= b; i++) //上左两条边置为1
{
if (x[0][i - 1] != -1 && x[0][i] != -1)x[0][i] = 1;
else x[0][i] = -1;
}
------------
初始上左两条边那里不对
by a754764096 @ 2021-04-20 15:34:40
@[a754764096](/user/463023) 谢谢大佬
by Zzz000 @ 2021-04-21 09:46:17