2020年5月6日
C. Vasya and String (尺取法）
摘要： C. Vasya and String High school student Vasya got a string of length n as a birthday present. This string consists of letters 'a' and 'b' only. Vasya 阅读全文
posted @ 2020-05-06 19:13 __MEET 阅读(222) 评论(0) 推荐(0)