摘要： #includeint main(){int n;double x,sum=0;scanf("%d",&n);for (int i=1;i<=n;i++){scanf("%lf",&x);sum=sum+x;}printf("%.4lf",sum/n);return 0;} 阅读全文

摘要： #includeint main(){int n,x,sum=0;scanf("%d",&n);for (int i=1;i<=n;i++){scanf("%d",&x);sum=sum+x;}printf("%.2lf",(double)sum/n);return 0;}http://noi.op... 阅读全文