~~数组日常开一千万路过~~
by Camorgx @ 2018-11-05 21:36:41
k<=n,i<=n,所以b和c数组最小要开到2*n+1（27）
by 寒落 @ 2018-11-05 21:38:40
n=13时斜行会有2*13-1=25条，17不够。
by zyzqd @ 2018-11-07 19:38:42
# 路过
by 加载错误 @ 2018-11-16 22:06:36