摘要: 图论 链式前向星 //邻接表,稀疏图 const int N = 100010, M = N * 2; int h[N], e[M], ne[M], idx; void add(int a, int b) { e[idx] = b, ne[idx] = h[a], h[a] = idx ++ ; } 阅读全文
posted @ 2025-08-14 15:48 catis 阅读(16) 评论(0) 推荐(0)