摘要: https://vijos.org/d/Bashu_OIers/p/5a79a3e1d3d8a103be7e2b81 求k级祖先,预处理nlogn,查询o1 // pragma GCC optimize(2) // pragma GCC optimize(3) // pragma GCC optim 阅读全文
posted @ 2019-08-11 10:22 walfy 阅读(186) 评论(0) 推荐(0) 编辑