Submission #1540190

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Source Code Expand

#include<cstdio>
#include<algorithm>
#include<cstring>
#define fo(i,a,b) for(int i=a;i<=b;i++)
#define fd(i,a,b) for(int i=a;i>=b;i--)
using namespace std;
const int N=1e5+5;
typedef long long ll;
ll n;
ll a[5],b[5];
int main()
{
	scanf("%lld%lld%lld%lld",&b[1],&b[2],&b[3],&b[4]);
	scanf("%lld",&n);
	a[1]=1,a[2]=2,a[3]=4,a[4]=8;
	n*=4;
	ll ans=0;
	while (n>0)
	{
		ll m=0,s=0;
		fd(i,4,1)
		if (n>=a[i])
		{
			m=n%a[i];
			s=n/a[i];
			n=m;
			ll tmp=s*b[i],j=i;
			while (j>1)tmp=min(tmp,(s*=2)*b[j-1]),j--;
			ans+=tmp;
		}
	}
	printf("%lld\n",ans);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld%lld%lld",&b[1],&b[2],&b[3],&b[4]);
                                                   ^
./Main.cpp:14:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
                  ^

Judge Result