Problem B. Beauty Of Unimodal Sequence
时间限制 4000 ms
内存限制 128 MB
You are given an array of $n$ integers $a_1, a_2, ..., a_n$. We define that a sequence $p_1, p_2, ..., p_k(k \in [1,n])$ is beautiful if and only if these conditions are met:
$\quad$ $\bullet$ $1 \le p_1 < p_2<\cdots<p_k \le n. $
$\quad$ $\bullet$ There exists $t(t \in [1,k])$ satisfying $a_{p_1}<a_{p_2}<\cdots<a_{p_t}$ and $a_{p_t}>a_{p_{t+1}} > \cdots > a_{p_k}$.
You need to find all the longest beautiful sequences, and output the lexicographically smallest one and the lexicographically largest one in them.
Check the examples below for better understanding.
输入数据
输出数据
For each test case, output two lines, the first of which depicts the lexicographically smallest one in longest beautiful sequences and the second of which depicts the lexicographically largest one in longest beautiful sequences.
样例输入
复制
7
1 4 2 5 7 4 6
3
1 2 3
3
3 2 1
样例输出
复制
1 2 4 5 6
1 3 4 5 7
1 2 3
1 2 3
1 2 3
1 2 3
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