CZH_xixi @ 2024-03-03 08:58:24

#include<bits/stdc++.h>
using namespace std;
int main(){
    float a,c;
    cin>>a;
    int d=a;
    float b;
    for(int i=1;i<=a;i++)
    {
        cin>>b;
        c+=b;
    }
    printf("%.2lf",c/a);
}

by MsgNotFound @ 2024-03-03 09:01:38

@2023_1202

开double

code:

#include<bits/stdc++.h>
using namespace std;
int main(){
    double a,c;
    cin>>a;
    int d=a;
    double b;
    for(int i=1;i<=a;i++)
    {
        cin>>b;
        c+=b;
    }
    printf("%.2lf",c/a);
}

by 0LCH0 @ 2024-03-03 09:02:36

用double能过吗

by CZH_xixi @ 2024-03-03 09:03:07

@42_TZY 谢谢

by MsgNotFound @ 2024-03-03 09:03:52

@0LCH0 可以啊，题解不都是double，我也是用double过的啊

by fengyuanwanye666 @ 2024-06-02 11:22:23

#include<iostream>
using namespace std;
int main(){
    int n;
    cin>>n;
    double sum=0;
    for(int i=1;i<=n;i++){
        int x;
        cin>>x;
        sum+=x;
    }
    printf("%.2lf",sum/n);
    return 0;
}

by 0x3E @ 2024-07-06 22:08:02

#include <stdio.h>
using namespace std;

int main() {
    int n, i;
    double sum = 0;
    scanf("%d", &n);
    for (i = 1; i <= n; i ++) {
        int a;
        scanf("%d", &a);
        sum += a;
    }
    printf("%.2lf", sum/n);
    return 0; 
}