Submission #5330102

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Source Code Expand

#include <cstdio>
int main() {
  long long A, B, C, D, N;
  long long ans = 0;
  scanf("%lld %lld %lld %lld %lld", &A, &B, &C, &D, &N)+1;
  long long MIN2 = A * 8;
  if (B*4 < MIN2) MIN2 = B*4;
  if (C*2 < MIN2) MIN2 = C*2;
  if (D < MIN2) MIN2 = D;
  ans += (N / 2) * MIN2;
  N = N % 2;
  
  long long MIN1 = A * 4;
  if (B*2 < MIN1) MIN1 = B*2;
  if (C < MIN1) MIN1 = C;
  
  if (N == 1) ans += MIN1;
  
  printf("%lld", ans);
  return 0;
}

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