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Time Limit: 2 s Memory Limit: 512 MB Total points: 100

#14177. r2pspc

统计

给定序列 $a_1,\dots,a_n$,共 $m$ 次查询,每次查询问 $\sum\limits_{i=l}^r 2^{a_i}$ 的二进制表示中 $1$ 的个数。

输入格式

第一行两个数表示 $n,m$。

第二行 $n$ 个数表示 $a_1,\dots,a_n$。

接下来 $m$ 行每行 $l,r$ 表示一次查询。

输出格式

共 $m$ 行,依次为每次查询的答案。

样例数据

样例 1 输入

5 2
2 3 1 2 32
2 5
2 5

样例 1 输出

4
4

子任务

Idea:rushcheyo,Solution:djq_cpp&ccz181078,Code:ccz181078,Data:ccz181078

对于 $100\%$ 的数据,满足 $1\le n\le {10}^5$,$1\le m\le {10}^6$,$1\le a_i\le 10^9$,$1\le l\le r\le n$。

对于 $25\%$ 的数据,满足 $n,m\le 1000$。

对于另外 $25\%$ 的数据,满足 $a_i\le100$。

对于另外 $25\%$ 的数据,满足 $m\le 10^5$

对于另外 $25\%$ 的数据,无特殊限制。

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