hdu_5150 水

交个题证明我还活着

#include<iostream>#include<cstdio>#include<cstring>#include<cmath>using namespace std;int main(){    int n;    while(scanf("%d",&n)!=EOF)    {        int sum=0;        int a;        for(int i=0;i<n;i++){            scanf("%d",&a);            int state=0;            for(int j=2;j<=sqrt(a);j++){                if(a%j==0) state=1;            }            if(!state) sum+=a;        }        printf("%d\n",sum);    }    return 0;}