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Time Limit: 4 s Memory Limit: 2048 MB Total points: 100

#14178. riapq

统计

给出排列 $a_1,\dots,a_n$,你需要维护序列 $b_1,\dots,b_n$,初值为 $0$。

共 $m$ 次操作:

修改操作:给出 $l,r$,对每个 $(i,j)$ 满足 $l\le i\le j\le r,\;a_i\le a_j$,将 $b_j$ 增加 $1$;

查询操作:给出 $x$,查 $b_x$。

输入格式

第一行两个整数 $n,m$;

第二行 $n$ 个整数依次表示 $a_1,\dots,a_n$;

接下来 $m$ 行,每行 $1,l,r$ 或 $2,x$ 表示修改操作或查询操作。

输入的所有数值为整数。

输出格式

对每个查询操作,输出一行,包含一个整数,表示答案。

样例数据

样例 1 输入

8 10
5 4 8 7 1 6 3 2
1 2 5
2 8
1 2 8
1 7 8
2 4
2 1
2 6
2 4
1 8 8
2 4

样例 1 输出

0
4
0
3
4
4

子任务

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

对于 $100\%$ 的数据,满足

$1\le n,m\le 2\times 10^5$;

$1\le a_i\le n$,$a_i$ 互不相同;

$1\le l\le r\le n$;

$1\le x\le n$。

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