C++ :

#include<bits/stdc++.h>
using namespace std;
int main (){

	int x,y,i,j;
	
	int a[x];
	
	int b[y];
	
	 for(i = 0; i < 100;i++){
	 	cin>>a[i];
	 	if(a[i] == 0){
	 		x = i;
			break;
		 }
	 }
	 
	 for(j = 0; j < 100;j++){
	 	cin>>b[j];
	 	if(b[j] == 0){
	 		y = j;
			break;
		 }
	 }
	 
	 double man = 0.0,woman = 0.0;
	 
	 for(i = 0;i < x;i++){
	 	man += a[i];
	 }
	 man = man / x;
	 
	  for(j = 0;j < y;j++){
	 	woman += b[j];
	 }
	 	woman = woman / y;
	 
	cout<<fixed<<setprecision(1)<<man<<" ";
	cout<<fixed<<setprecision(1)<<woman;
	
	return 0;
}

Java :

import java.util.Scanner;



public class Main {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		
		
		int[] a=new int[5];
		
		for(int i=0;i<5;i++){
			a[i]=sc.nextInt();
		}
		int[] b=new int[4];
		
		for(int i=0;i<4;i++){
			b[i]=sc.nextInt();
		}
		double a1=getAvg(a);
		double a2=getAvg(b);
		System.out.print(String.format("%.1f",a1)+" ");
		System.out.print(String.format("%.1f",a2));
		
	}
	public static int getSum(int[] a){
		int sum=0;
		for(int i=0;i<a.length;i++){
			sum=sum+a[i];
		}
		return sum;
	}
	public static double getAvg(int[] a){
		int sum=getSum(a);
		double avg=sum*1.0/(a.length-1);
		return avg;
	}
	
}

Python :

# 接收男生跳远成绩
n = input().split()
# 接收女生跳远成绩
m = input().split()
# 类型转换
c = 0
d = 0
x = len(n) - 1
y = len(m) - 1
# 男生平均成绩
for i in range(0, x):
    n[i] = int(n[i])
    c += n[i]
print('%.1f' % (c / x), end=' ')
# 女生平均成绩
for j in range(0, y):
    m[j] = int(m[j])
    d += m[j]
print('%.1f' % (d / y))