P10095 AT_abc309_a [ABC309A] Nine 入门

P10096 AT_abc309_b [ABC309B] Rotate 入门

P10097 AT_abc309_c [ABC309C] Medicine 普及−

P10098 AT_abc309_d [ABC309D] Add One Edge 普及/提高− 广度优先搜索 BFS

P10099 AT_abc309_e [ABC309E] Family and Insurance 普及/提高− 深度优先搜索 DFS

P10100 AT_abc309_f [ABC309F] Box in Box 普及+/提高 线段树 树状数组 树套树

P10101 AT_abc309_g [ABC309G] Ban Permutation 省选/NOI−

P10102 AT_abc309_h [ABC309Ex] Simple Path Counting Problem NOI/NOI+/CTSC 快速傅里叶变换 FFT 快速数论变换 NTT