数组不要卡着空间开，`f[100][100],j[100][100],` 改成 `f[105][105],j[105][105],` 就 $\text{A}$ 了
by char_phi @ 2022-10-20 20:49:55
@[Little_Andyyu](/user/715774)
by char_phi @ 2022-10-20 20:50:02