C :

#include<stdio.h>
int main()
{
	int n,i,s=0;
	for(i=1;i<=10;i++)
	{
		scanf("%d",&n);
		s=s+n;
	}
	printf("ave=%.1f\n",s/10.0);
}

C++ :

#include<stdio.h>
int main()
{
    int a,n=10,i=1,s=0;
    for(i=1;i<=n;i++)
    {
    	scanf("%d",&a);
    	s=s+a;
	}
	printf("ave=%.1f",s/10.0);
    return 0;
}

Java :

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        float sum = 0;
        for (int i = 0 ; i<10;i++){
            sum += sc.nextInt();
        }
        System.out.printf("ave=%.1f", sum / 10);
    }
}

Python :

# coding=utf-8
#!/usr/bin/python2
import sys
import re
import math


a,b,c,d,e,f,g,h,i,j=(int(x) for x in raw_input().split(' '))


ave=float(a+b+c+d+e+f+g+h+i+j)


kkk=ave/10



print 'ave=%.1f'%(kkk)

C# :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    internal class Program
    {
        static void Main()
        {
            /*int num = 0;
            int n = Convert.ToInt32(Console.ReadLine());
            for (int i = 1; i <= n; i++)

            {
                if (i %2== 0)
                {
                    i = -i;
                    num += i;
                    i = -i;
                }
                else if (i %2== 1)
                {
                    num += i;
                }

                
            }*/
            int sum = 0;
            string[] strings = Console.ReadLine().Split(' ');
            foreach (string s in strings)
            {
                int i = Convert.ToInt32(s);
                sum += i;
            }
            float n = strings.Length;
            Console.WriteLine("ave="+sum / n); 
            Console.ReadKey();
     
        }
    }
}