题解 | 求平均数
求平均数
https://www.nowcoder.com/practice/41e59cee1221424bb9291435aae79ae9
import java.util.Scanner;
public class Main
{
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
int n = 0;
int counter = 0;
float sum = 0;
while((n = scan.nextInt()) >= 0)
{
sum += n;
counter++;
}
System.out.printf("%.2f",sum/counter);
}
}
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