WA#12,求助（玄关）

HEROBRINEH @ 2024-03-10 12:57:19

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    int a[n]={0};
    for(int i=0;i<n;i++){
        cin>>a[i];
    }
    float ave=0;
    for(int j=0;j<n;j++){
        ave=ave+a[j];
    }
    ave=ave/n;
    cout<<fixed<<setprecision(2)<<ave;
    return 0;
}

by fanjiayu666 @ 2024-03-10 13:15:18

额，你这个代码

cpp:

#include<bits/stdc++.h>
using namespace std;
int main(){
   int a;
   double h=0,z;
   cin>>a;
   for(int i=0;i<a;i++){
      cin>>z;
      h+=z;
   }
   h/=a;
   printf("%lf",h);
   return 0;
}

by fanjiayu666 @ 2024-03-10 13:17:36

printf("%lf",h);
错了
printf("%.2lf",h);

by Mr_Clock @ 2024-04-19 17:03:58

@楼主 你没保留两位小数dio

by Rb3f @ 2024-06-22 15:41:49

#include<bits/stdc++.h>
using namespace std;
int main(){
   int a;
   double h=0,z;
   cin>>a;
   for(int i=0;i<a;i++){
      cin>>z;
      h+=z;
   }
   h/=a;
   printf("%lf",h);
   return 0;
}

by joe_001 @ 2024-08-08 17:21:52

#include<bits/stdc++.h>
using namespace std;
long long n,a[10001];
double k;
int main()
{   
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>a[i];
    k=a[1];
    for(int i=2;i<=n;i++)
        k+=a[i];
    k=k*1.0/n;
    cout<<fixed<<setprecision(2)<<k<<endl;
    return 0;
}