2018年9月6日
Lucky Queries (线段树的区间合并)
摘要： Lucky Queries CodeForces - 145E Petya loves lucky numbers very much. Everybody knows that lucky numbers are positive integers whose decimal record con 阅读全文
posted @ 2018-09-06 20:36 *starry* 阅读(203) 评论(0) 推荐(0)
Traffic Jams in the Land（线段树好题）
摘要： Traffic Jams in the Land CodeForces - 498D Some country consists of (n + 1) cities, located along a straight highway. Let's number the cities with con 阅读全文
posted @ 2018-09-06 11:52 *starry* 阅读(255) 评论(0) 推荐(0)