03 2019 档案

摘要:7720: RGB Coloring 题目描述 Takahashi has a tower which is divided into N layers. Initially, all the layers are uncolored. Takahashi is going to paint som 阅读全文
posted @ 2019-03-27 16:52 oc_co 阅读(276) 评论(0) 推荐(1) 编辑
摘要:next_permutation:由原排列得到字典序中下一次最近排列 prev_permutation:由原排列得到字典序中上一次最近排列 阅读全文
posted @ 2019-03-07 18:00 oc_co 阅读(157) 评论(0) 推荐(1) 编辑
摘要:线段树区间加法,区间乘法,区间查询 阅读全文
posted @ 2019-03-01 15:22 oc_co 阅读(138) 评论(0) 推荐(0) 编辑

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