1 #include<cstdio> 2 #include<map> 3 #include<iostream> 4 #define LL long long 5 using namespace std; 6 int n; 7 int a[305]; 8 int b[305]; 9 map<int,int> dp;10 map<int,int>::iterator it;11 int gcd(int a,int b){12     return b==0?a:gcd(b,a%b);13 }14 int main(void){15     scanf("%d",&n);16     for(int i=0;i<n;++i)scanf("%d",a+i);17     for(int i=0;i<n;++i)scanf("%d",b+i);18     for(int i=0;i<n;++i){19         if(dp.count(a[i]))dp[a[i]]=min(dp[a[i]],b[i]);20         else dp[a[i]]=b[i];21         for(it=dp.begin();it!=dp.end();++it){22             int temp=gcd(a[i],it->first);23             if(dp.count(temp))dp[temp]=min(dp[temp],dp[a[i]]+it->second);24             else dp[temp]=dp[a[i]]+it->second;25         }26     }27     if(dp.count(1))printf("%d\n",dp[1]);28     else printf("-1\n");29 }