2017年2月11日
TOJ 4105 Lines Counting（离线树状数组）
摘要： On the number axis, there are N lines. The two endpoints L and R of each line are integer. Give you M queries, each query contains two intervals: [L1, 阅读全文
posted @ 2017-02-11 10:16 Blackops 阅读(222) 评论(0) 推荐(0) 编辑