CodeTON Round 3 (Div. 1 + Div. 2, Rated, Prizes!) A. Indirect Sort 解题报告
Problem-A-Codeforces(UnofficialmirrorbyMenci)题目描述:Youaregivenapermutationa1,a2,…,ana1,a2,…,anofsizenn,whereeachintegerfrom11tonnappearsexactlyonce.Youcandothefollowingoperationanynumberoftimes