提出 #42233273

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ソースコード 拡げる

#include<cstdio> 
#include<cstring>
#include<algorithm>
#define fep(i,x,y) for(int i=x;i<=y;i++)
#define feq(i,x,y) for(int i=x;i>=y;i--)
#define N 210000
using namespace std;
template<class T>
inline T mymin(T x,T y){return x<y?x:y;}
template<class T>
inline T mymax(T x,T y){return x>y?x:y;}
int a[N],n,b[N],n1,n2;
int c[N],m;
long double maxans=-999999999,minans=999999999;
int main(){
	scanf("%d",&n);
	fep(i,1,n){
		int x;scanf("%d",&x);
		if(x>0)a[++n1]=x;
		else b[++n2]=x;
	}
	sort(a+1,a+n1+1);
	sort(b+1,b+n2+1);
	fep(i,1,n1){
		if(i<=3 || i>=n1-2)c[++m]=a[i];
	}
	fep(i,1,n2){
		if(i<=3 || i>=n2-2)c[++m]=b[i];
	}
	fep(i,1,m){
		fep(j,i+1,m){
			fep(k,j+1,m){
				long double now=(c[i]+c[j]+c[k])*1.0/((long double)c[i]*c[j]*c[k]);
				maxans=mymax(maxans,now);minans=mymin(minans,now);
			}
		}
	}
	printf("%.12Lf\n%.12Lf\n",minans,maxans);
	return 0;
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   16 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
./Main.cpp:18:14: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   18 |   int x;scanf("%d",&x);
      |         ~~~~~^~~~~~~~~

ジャッジ結果