Rocky: OK. I'll grab us a bite. You two stand in line for the photos. There's quite a queue.

没问题，我去拿一些点心来。你们两个就排队等着照像吧，排队的人挺多的呢。

youdao

For each test cases, output a single line of space-separated integers which are the values of people in the order they stand in the queue.

大意：排队买票问题，后面来的总是把原来的人替换掉，并且使得原来的人往后移，让你顺序输出他们代表的编号，用线段树来记录空格数。

youdao

Voter Arthur Shakwira said he got in line at 4 a.m. but left the queue over confusion about which line to stand in.

NPR: Kenya Vote Sees Long Lines; Attacks Kill 12