Time limit : 2sec / Stack limit : 256MB / Memory limit : 256MB ProblemCarol is a great alchemist. In her world, each metal has a name of 2N (N is an integer) letters long, which consists of uppercase alphabets. Carol can create metal S3 from S1 and S…
C - A Great Alchemist Time limit : 2sec / Stack limit : 256MB / Memory limit : 256MB Problem Carol is a great alchemist. In her world, each metal has a name of 2N (N is an integer) letters long, which consists of uppercase alphabets. Carol can create…
题目来源:A Great Alchemist A Great Alchemist Time limit : 2sec / Stack limit : 256MB / Memory limit : 256MB Problem Carol is a great alchemist. In her world, each metal has a name of 2N (N is an integer) letters long, which consists of uppercase alphabet…
1, The lawsuit is very much o the lawyer's mind. 2, The canteen was absolutely packed. 3, Doctors diagnose before they prescribe a drug. 4, Not only did the rocket solve a problem that had intrigued man for ages, but more importantly, it literally op…
For a better environment, we should teach our children to put litter/garbage/trash into dustbin/dust pan. When he decided to study hard, his life had an abrupt change. He came to see me abruptly. Once she encounters danger, she'll show her mettle. I…
这本书学的很辛苦,总共10个Level,每个Level有5个Unit,每个Unit10个单词,实际上自己差不多一天才能学完1个Unit10个单词.(当然,一天我只能花大约1个小时左右在英语上) 而且跟之前的<vocabulary builder>甚至<word power made easy>都不同,这里的生词多得多,讲解也没有太多从语源上来解释,所以比那两本枯燥的多,但不管怎样,生词多说明自己学习了后进步会大,所以咬牙学完吧,向词汇量1万5000挺进. Level 1 Unit1…
