2018年5月10日
CodeForces 588E A Simple Task(线段树)
摘要： This task is very simple. Given a string S of length n and q queries each query is on the format i j k which means sort the substring consisting of th 阅读全文
posted @ 2018-05-10 15:05 Styx-ferryman 阅读(251) 评论(0) 推荐(0) 编辑