2019年3月21日
[SP11470]TTM - To the moon
摘要： "To The Monn" 区间加的可持久化线段树 懒标记不再适用，将标记永久化，统计答案时累加即可。 cpp include include include include include include include using namespace std; define LL long lo 阅读全文
posted @ 2019-03-21 21:20 茶Tea 阅读(179) 评论(0) 推荐(0) 编辑