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
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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
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