Tony's Log

Algorithms, Distributed System, Machine Learning
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2015年11月23日

HackerRank "AND xor OR"
摘要： Actually I think problem statement is somewhat misleading. No need to mention range [L, R] at all.The intention is a variation to "Largest Rectangle" ... 阅读全文
posted @ 2015-11-23 15:49 Tonix 阅读(249) 评论(0) 推荐(0)

LeetCode "Range Sum Query 2D - Mutable"
摘要： 2D Segment Tree -> Quad Tree. class Node // 2D Segment Tree { public: Node(vector> &m, int ix0, int iy0, int ix1, int iy1) ... 阅读全文
posted @ 2015-11-23 06:43 Tonix 阅读(410) 评论(0) 推荐(0)