03 2019 档案

RGB Coloring(组合数模板）
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(290) 评论(0) 推荐(1)
STL算法:next_permutation求全排列
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(159) 评论(0) 推荐(1)
线段树模板
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(143) 评论(0) 推荐(0)