摘要：
题目描述 Lweb 面对如山的英语单词，陷入了深深的沉思，”我怎么样才能快点学完，然后去玩三国杀呢？“。这时候睿智的凤老师从远处飘来，他送给了 Lweb 一本计划册和一大缸泡椒，他的计划册是长这样的： —————序号 单词————— 1 2......n-2n-1 n————— 然后凤老师告诉 Lw 阅读全文
摘要：
题目描述 Bessie has been playing with strings again. She found that by changing the order of the alphabet she could make some strings come before all the 阅读全文