题解 | #统计成绩#

//这篇是用C语言写的 仅供参考 #include<stdio.h> int main() { double n; scanf("%lf",&n); double maxx=0,minn=1e9,average=0,sum=0; for(int i=0;i<n;++i) { double x; scanf("%lf",&x);//每输入一次就进行一次判断和加和 if(x>maxx)maxx=x; if(x<minn)minn=x; sum+=x; } average=sum/n; printf("%.2f %.2f %.2f",maxx,minn,average); return 0; }

int main()
{
    double n;
    scanf("%lf",&n);
    double maxx=0,minn=1e9,average=0,sum=0;//根据题目给的范围给定一个较大的min值
    for(int i=0;i<n;++i)
    {
        double x;
        scanf("%lf",&x);//每输入一次就进行一次判断和加和
        if(x>maxx)maxx=x;
        if(x<minn)minn=x;
        sum+=x;
    }
    average=sum/n;
    printf("%.2f %.2f %.2f",maxx,minn,average);
    return 0;
}