摘要： Given two strings s and t which consist of only lowercase letters. 给出两个字符串，s和t，都是只有小写字母组成的。 String t is generated by random shuffling string s and the 阅读全文

摘要： They were sitting in the corner of the cafeteria, as far away from where I sat as possible in the long room. 我们坐在自主餐厅的角落里，在房间里坐的尽可能的远离我坐的地方。 There wer 阅读全文