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ZOJ Problem Set - 3911
Prime Query

Time Limit: 5 Seconds      Memory Limit: 196608 KB

You are given a simple task. Given a sequence A[i] with N numbers. You have to perform Q operations on the given sequence.

Here are the operations:

  • A v l, add the value v to element with index l.(1<=V<=1000)
  • R a l r, replace all the elements of sequence with index i(l<=i<= r) with a(1<=a<=10^6) .
  • Q l r, print the number of elements with index i(l<=i<=r) and A[i] is a prime number

Note that no number in sequence ever will exceed 10^7.


The first line is a signer integer T which is the number of test cases.

For each test case, The first line contains two numbers N and Q (1 <= N, Q <= 100000) - the number of elements in sequence and the number of queries.

The second line contains N numbers - the elements of the sequence.

In next Q lines, each line contains an operation to be performed on the sequence.


For each test case and each query,print the answer in one line.

Sample Input

5 10
1 2 3 4 5
A 3 1      
Q 1 3
R 5 2 4
A 1 1
Q 1 1
Q 1 2
Q 1 4
A 3 5
Q 5 5
Q 1 5

Sample Output


Author: HUA, Yiwei
Source: ZOJ Monthly, October 2015
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