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Time Limit: 15 s Memory Limit: 128 MB Total points: 100

#9971. 新本格魔法少女りすか

統計

给定排列 $a_1,\dots,a_n$,共 $m$ 次询问,第 $i$ 次询问给定 $m_i$ 个区间 $[l_j,r_j],\;1\le j\le m_i$,满足 $1\le l_j\le r_j\le n,\;r_j < l_{j+1}$,你需要求出有几个二元组 $(p,q)$ 满足 $p < q,\;a_p< a_q$,且存在 $1\le u< v\le m_i$ 使得 $l_u\le p\le r_u,\;l_v\le q\le r_v$。

输入格式

第一行两个数表示 $n,m$。

接下来一行 $n$ 个数表示 $a_1,\dots,a_n$。

接下来,每个询问第一行为 $m_i$,接下来 $m_i$ 行为 $l_j,r_j$。

输出格式

共 $m$ 行,依次为每个询问的答案。

样例数据

样例输入

5 2
5 4 2 3 1
3
1 1
2 3
4 4
2
1 2
3 4

样例输出

1
0

子任务

Idea:nzhtl1477,Solution:ccz181078,Code:ccz181078,Data:ccz181078

对于 $100\%$ 的数据,满足 $1\le n\le 5\times 10^5$,$1\le \sum\limits_{i=1}^m m_i\le 5\times 10^5$,$m_i\ge 1$,$1\le a_i\le n$,所有数值为整数。

对于 $0\%$ 的数据,满足 $n\le 10^3,\;\sum\limits_{i=1}^m m_i\le 10^3$。

对于另外 $10\%$ 的数据,满足 $m_i\le 10$。

对于另外 $10\%$ 的数据,满足 $m\le 5$。

对于另外 $80\%$ 的数据,无特殊限制。

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