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Time Limit: 0.5 s Memory Limit: 500 MB Total points: 100

#7481. 大学

Statistics

题目描述

一个长为 $n$ 的非负整数序列 $a$,支持以下两个操作:

  • 1 l r x:把区间 $[l,r]$ 中所有 $x$ 的倍数除以 $x$。
  • 2 l r:查询区间 $[l,r]$ 的和。

本题强制在线,每次的 $l,r,x$ 需要 xor 上上次答案,如果之前没有询问,则上次答案为 $0$。

输入格式

第一行两个整数表示 $n,m$。

第二行 $n$ 个非负整数表示 $a_i$。

之后 $m$ 行每行一个操作。

  • 1 l r x:把区间 $[l,r]$ 中所有 $x$ 的倍数除以 $x$。
  • 2 l r:查询区间 $[l,r]$ 的和。

输出格式

对于每次询问,输出一行一个整数表示答案。

样例 #1

样例输入 #1

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

样例输出 #1

12

提示

$1\leq n,m\leq 10^5$,$0\leq a_i\leq 5\times 10^5$,解密后的 $x,l,r$ 满足 $1\leq x\leq 5\times 10^5$,$1\leq l\leq r\leq n$。

Idea:nzhtl1477

Solution:nzhtl1477

Code:nzhtl1477,mrsrz

Data:nzhtl1477,mrsrz

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