Submission #2009690

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Source Code Expand

#include <bits/stdc++.h>
#include <vector>
#define REP(i,n) for(int i=0;i<n;i++)
using namespace std;
typedef long long ll;

int main(){

  ll q,h,s,d,n;
  cin>>q>>h>>s>>d>>n;
  h = min(q*2,h);
  s = min(h*2,s);
  d = min(s*2,d);
  ll ans;
  if(n%2==1){
    ans = n/2*d + s;
  }else{
	ans = n/2*d;
  }
  cout<<ans<<endl;
  return 0;
}

Submission Info

Judge Result