摘要: for (int i = n; i; --i) for (int j = i + 1; j <= n; ++j) fms(h[i], h[j], C[j][i]); int ans = 0; for (int i = 1; i <= n; ++i) reduce(ans += h[i] - mod) 阅读全文
posted @ 2020-08-02 08:10 daklqw 阅读(268) 评论(0) 推荐(0) 编辑