Problem 1001 “Long long ago, there is a sequence A with length n.”这英语水平,

20112840 | 2014-12-20 19:14:08Author
*_*
pmxm | 2014-12-20 19:45:59# 1
RE:“Long long ago, there is a sequence A with length n.”这英语水平,
Yeah!
lilintong22222 | 2014-12-20 20:12:57# 2
RE:“Long long ago, there is a sequence A with length n.”这英语水平,
点题目右边的view可以直接看中文