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o16e1slo.cpp
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o16e1slo.cpp
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#include <iostream>
#include <vector>
using namespace std;
int wagi[1000006];
int from[1000006];
int to[1000006];
int perm[1000006];
int odw[1000006];
vector<int> dlugosci;
vector<long long int> sumyWag;
vector<int> minima;
int main(){
ios_base::sync_with_stdio(false);
int n;
cin >> n;
int najm=7000;
for(int i=1;i<=n;i++){
cin>> wagi[i];
najm=min(najm,wagi[i]);
}
for(int i=1;i<=n;i++){
cin>> from[i];
}
for(int i=1;i<=n;i++){
cin>> to[i];
perm[from[i]]=to[i];
}
for(int i=1;i<=n;i++){
int j=i;
int licznik = 0;
long long int suma = 0;
int minimum = 70000;
while(odw[j]==0){
licznik++;
suma+=wagi[j];
minimum=min(wagi[j],minimum);
odw[j]=i;
j=perm[j];
}
if(licznik>0){
dlugosci.push_back(licznik);
sumyWag.push_back(suma);
minima.push_back(minimum);
}
}
long long int w=0;
for(int i=0;i<dlugosci.size();i++){
w+=min(sumyWag[i]+(dlugosci[i]-2)*minima[i],sumyWag[i]+minima[i]+(dlugosci[i]+1)*najm);
}
cout << w;
}