[POJ 1004] Financial Management C++解题

参考：https://www.cnblogs.com/BTMaster/p/3525008.html

#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
int main()
{
    float a,sum;
    while (cin>>a)//要注意格式，能从文件读入多组数据！ 
    {
        sum=a;
        for (int i=0;i<11;i++)
        {
            cin>>a;
            sum+=a;
        }
        cout<<'$'<<sum/12<<endl;
    }
    
    return 0;
 }