POJ 1004--Financial Management

题意

分析

#include<iostream>
int main()
{
double salary[12] = { 0 };
std::cin >> salary[0] >> salary[1] >> salary[2] >> salary[3] >> salary[4] >> salary[5] >> salary[6] >> salary[7] >> salary[8] >> salary[9] >> salary[10] >> salary[11];
printf("$%.2f\n", (salary[0] + salary[1] + salary[2] + salary[3] + salary[4] + salary[5] + salary[6] + salary[7] + salary[8] + salary[9] + salary[10] + salary[11]) / 12.0);
return 0;
}