输出怎么换成2位小数，样例一直是7.66667

A宋锦瑞A @ 2021-06-25 10:41:26

by A宋锦瑞A @ 2021-06-25 10:42:37

代码：

#include<bits/stdc++.h>

using namespace std;

int n;
float a[1010],num=0.00,Min,Max;

int main()
{
    cin>>n;
    for(int i=0;i<=n-1;i++)
    {
        cin>>a[i];
        if(i==0)
        {
            Min=a[i];
            Max=a[i];
        }
        else
        {
            if(Min>a[i])
            {
                Min=a[i];
            }
            if(Max<a[i])
            {
                Max=a[i];
            }
        }
        num+=a[i];
    }
    num-=Max+Min;
    num/=n-2;
    cout<<num;

    return 0;
}

by Ninelife_Cat @ 2021-06-25 10:54:33

@A宋锦瑞A cout<<fixed<<setprecision(2)<<num;

by A宋锦瑞A @ 2021-06-25 10:56:02

感谢，已AC?

by _l_l_l_l_l_ @ 2021-06-25 11:04:21

@A宋锦瑞A printf("%.2lf",num);