View Code of Problem 140

#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
#include<string>
using namespace std;
int main()
{
	double sum = 0;
	for (int i = 0; i < 12; i++) {
		double temp;
		cin >> temp;
		sum += temp;
	}
	double res = sum / (double)12;
	printf("$%.2lf\n", res);//printf函数有自动四舍五入的功能

	return 0;
}