Posted 03/22/2015Updated 07/24/2025 Semprathlon / Simfae Dean ACM-ICPC / Programinga few seconds read (About 25 words)FFZU-ACM月赛不行了线段树/树状数组的另一种用法不会，它的逆向问题更不会FFZU-ACM月赛不行了https://devblog.citruxonve.net/posts/a2ddb966/AuthorSemprathlon / Simfae DeanPosted on03/22/2015Updated on07/24/2025Licensed under