摘要: 题目描述 Bessie's birthday is coming up, and she wishes to celebrate for the next D (1 <= D <= 100,000; 70% of testdata has 1 <= D <= 500) days. Cows have 阅读全文
posted @ 2019-08-16 11:34 ALEZ 阅读(217) 评论(0) 推荐(0) 编辑
摘要: 1.分块 2.三分 3.归并 4.二分+有关于树上的问题 阅读全文
posted @ 2019-08-16 11:23 ALEZ 阅读(110) 评论(0) 推荐(0) 编辑