Consider an array of integers $C = [c_1, c_2, \ldots, c_n]$ of length $n$. Let's build the sequence of arrays $D_0, D_1, D_2, \ldots, D_{n}$ of length $n+1$ in the following way:
- The first element of this sequence will be equals
$C$:$D_0 = C$. - For each
$1 \leq i \leq n$array$D_i$will be constructed from$D_{i-1}$in the following way: - Let's find the lexicographically smallest subarray of
$D_{i-1}$of length$i$. Then, the first$n-i$elements of$D_i$will be equals to the corresponding$n-i$elements of array$D_{i-1}$and the last$i$elements of$D_i$will be equals to the corresponding elements of the found subarray of length$i$.
Array $x$ is subarray of array $y$, if $x$ can be obtained by deletion of several (possibly, zero or all) elements from the beginning of $y$ and several (possibly, zero or all) elements from the end of $y$.
For array $C$ let's denote array $D_n$ as $op(C)$.
Alice has an array of integers $A = [a_1, a_2, \ldots, a_n]$ of length $n$. She will build the sequence of arrays $B_0, B_1, \ldots, B_n$ of length $n+1$ in the following way:
- The first element of this sequence will be equals
$A$:$B_0 = A$. - For each
$1 \leq i \leq n$array$B_i$will be equals$op(B_{i-1})$, where$op$is the transformation described above.
She will ask you $q$ queries about elements of sequence of arrays $B_0, B_1, \ldots, B_n$. Each query consists of two integers $i$ and $j$, and the answer to this query is the value of the $j$-th element of array $B_i$.
Input
The first line contains the single integer $n$ ($1 \leq n \leq 10^5$) — the length of array $A$.
The second line contains $n$ integers $a_1, a_2, \ldots, a_n$ ($1 \leq a_i \leq n$) — the array $A$.
The third line contains the single integer $q$ ($1 \leq q \leq 10^6$) — the number of queries.
Each of the next $q$ lines contains two integers $i$, $j$ ($1 \leq i, j \leq n$) — parameters of queries.
Output
Output $q$ integers: values of $B_{i, j}$ for required $i$, $j$.
Note
In the first test case $B_0 = A = [2, 1, 3, 1]$.
$B_1$ is constructed in the following way:
- Initially,
$D_0 = [2, 1, 3, 1]$. - For
$i=1$the lexicographically smallest subarray of$D_0$of length$1$is$[1]$, so$D_1$will be$[2, 1, 3, 1]$. - For
$i=2$the lexicographically smallest subarray of$D_1$of length$2$is$[1, 3]$, so$D_2$will be$[2, 1, 1, 3]$. - For
$i=3$the lexicographically smallest subarray of$D_2$of length$3$is$[1, 1, 3]$, so$D_3$will be$[2, 1, 1, 3]$. - For
$i=4$the lexicographically smallest subarray of$D_3$of length$4$is$[2, 1, 1, 3]$, so$D_4$will be$[2, 1, 1, 3]$. - So,
$B_1 = op(B_0) = op([2, 1, 3, 1]) = [2, 1, 1, 3]$.
样例
4
2 1 3 1
4
1 1
1 2
1 3
1 4
2
1
1
3
题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。