0分求助

sunxiaorui @ 2024-10-06 14:58:30

#include<bits/stdc++.h>
using namespace std;
int n;
double num=0;
int  a[824]; 
int main(){
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>a[i];
    sort(a+1,a+n+1);

    for(int i=1;i<=n-1;i++)
        num+=a[i];
    cout<<fixed<<setprecision(2)<<num/(n-2)<<endl<<max(fabs(a[2]-num/(n-2)),fabs(a[n-1]-num/(n-2)));
    return 0;
}

by Focalors_HuTao @ 2024-10-06 15:19:19

#include<bits/stdc++.h>
using namespace std;
int n;
long long ans=0;
double num=0,maxn=-112333;
double a[824]; 
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];  
    }
    sort(a+1,a+n+1);
    for(int i=2;i<n;i++){
        ans+=a[i];
    }
    printf("%.2lf ",ans/1.0/double(n-2));
    for(int i=2;i<n;i++){
        maxn=max(maxn,abs(ans/1.0/(n-2)-a[i]));
    }
    printf("%.2lf",maxn);
    return 0;
}

忠告：能不秀就别秀，能写开不出错就别写一起。

a数组要开double，输出中间是空格不是换行

求关注

by Focalors_HuTao @ 2024-10-06 15:20:47

@Focalors_HuTao ``` ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

这是快速读入，不加也没啥，用法是在cin  cout输入输出流中直接加在主函数下方

by sunxiaorui @ 2024-10-06 15:24:46

@Focalors_HuTao 谢谢你啦我先把另一题弄完再看一下谢谢

by heruixing @ 2024-10-13 10:22:17

???