c++——利用一维数组求最大，最小，平均值

#include <iostream>
using namespace std;
int main(){
    int sum,max=0,min=100,a[3];
    float avg;
    sum=0;
    for (int i=1;i<=9;++i) {
        //cin >> a[i];
        a[i]=rand()% 100;
        cout<<a[i]<<endl;
        sum += a[i];
        if (a[i]<=min)
            min=a[i];
        if (a[i]>=max)
            max=a[i];
    }


    avg=sum/9;


    cout <<endl<< sum<<endl;
    cout <<avg<<endl;
    cout <<max<<endl;
    cout <<min<<endl;
    return 0;
}