ac题解！正经解题！ac必过！🤮🤮

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测试点信息
得分率：100%
#1
AC
1ms/3.13m#2
AC
0ms/3.13m#3
AC
0ms/3.25m#4
AC
0ms/3.13m#5
AC
0ms/3.25m#6
AC
0ms/3.13m#7
AC
0ms/3.13m#8
AC
0ms/3.13m#9
AC
0ms/3.25m#10
AC
0ms/3.13m#11
AC
0ms/3.13m#12
AC
0ms/3.13m#13
AC
1ms/3.13m#14
AC
1ms/3.13m#15
AC
0ms/3.25m#16
AC
0ms/3.13m#17
AC
1ms/3.25m#18
AC
0ms/3.13m#19
AC
0ms/3.00m#20
AC
1ms/3.13m#21
AC
0ms/3.25m#22
AC
0ms/3.25m#23
AC
0ms/3.13m#24
AC
0ms/3.25m#25
AC
0ms/3.13m#26
AC
0ms/3.00m#27
AC
1ms/3.25m#28
AC
0ms/3.13m#29
AC
0ms/3.25m#30
AC
0ms/3.13m

#include<iostream>
using namespace std;
int main(){
    int n,m,sum=0,mm,a=0;
    cin>>n>>m;
    int nn[n+1];
    for(int i=1;i<=n;++i){
        cin>>nn[i];
    }
    for(int i=0;i<m;++i){
        a=0;
        cin>>mm;
        for(int j=2;j<nn[mm];++j){
            if(nn[mm]%j==0){
                a=1;
                break;
            }
        }
        if(a==1)continue;
        sum+=nn[mm];
    }
    cout<<sum;
    return 0;
}