摘要: 二维数组 vector< vector<int> > a(n, vector<int>(m)); 函数 auto dfs = [&](auto self, int x) { sz[x] = 0; if (!x) return; sz[x] = 1; self(self, l[x]); self(se 阅读全文
posted @ 2024-11-14 17:21 Shawk 阅读(14) 评论(0) 推荐(0)