改了一下find立马提速N倍·-·

咋改成别的题了……
这道题倒这来处理就很简单了，可以用并查集

回复 @铁策 :
原来是April Fools Day 。

回复 @stdafx.h :
嘿嘿嘿……这题在比赛的时候只有不到400个人写出来（总人数4000多），怎么是水题呢（滑稽）
官方题解
This problem asked to figure out an integer sequence from two samples and problem title. It turned out to be surprisingly hard, a lot harder than I anticipated. A quick search through OEIS shows that while there are a lot of sequences which have these two numbers in them, only one is related to Leonardo da Vinci (and if you're looking for da Vinci, there are only two sequences overall). http://oeis.org/A221180 is an erroneous series of powers of 2, written down by da Vinci in his diaries and available as part of "Codex Madrid I".

回复 @/k :
注意标题

数据是错的，只能打表。

.....举报！