2018年8月18日

TZOJ 2722 Matrix(树状数组区间取反单点查询)

摘要： 描述 Given an N*N matrix A, whose elements are either 0 or 1. A[i, j] means the number in the i-th row and j-th column. Initially we have A[i, j] = 0 (1 阅读全文

posted @ 2018-08-18 01:19 大桃桃 阅读(317) 评论(0) 推荐(0)

TZOJ 2725 See you~(二维树状数组单点更新区间查询)

摘要： 描述 Now I am leaving hust acm. In the past two and half years, I learned so many knowledge about Algorithm and Programming, and I met so many good frie 阅读全文

posted @ 2018-08-18 01:06 大桃桃 阅读(266) 评论(0) 推荐(0)

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