mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
26a72e347d
2100-2199
28 lines
432 B
C++
28 lines
432 B
C++
#include <iostream>
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#include <cmath>
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using namespace std;
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int prime(int x)
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{
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if(x==1)
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return 0;
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for(int i=2; i<=sqrt(x); i++)
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if(x%i==0)
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return 0;
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return 1;
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}
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int main()
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{
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int n,x;
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while((cin>>n)>0)
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{
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int sum=0;
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while(n--)
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{
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cin>>x;
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sum+=prime(x);
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}
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cout<<sum<<endl;
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}
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return 0;
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}
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