Submission #6310937

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Source Code Expand

typedef long long ll;
#include <bits/stdc++.h>
using namespace std;
template<typename A, size_t N, typename T>
void Fill(A (&array)[N], const T &val){
    std::fill( (T*)array, (T*)(array+N), val );
}

int main() {
    ll q,h,s,d;
    ll n;
    std::cin >> q>>h>>s>>d;
    std::cin >> n;
    ll a = min({q*4,h*2,s});
    if(n%2==0){
        std::cout << min(a*n,d*n/2) << std::endl;
    }else{
        std::cout << min(a*(n-1),d*(n-1)/2)+a << std::endl;
    }
}

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