北大POJ，水题，1004，Financial Management

/***** POJ 1004 Financial Management ********/

/******** written by C_Shit_Hu ************/

/****************************************************************************/
/* 
        Larry graduated this year and finally has a job. 
	He's making a lot of money, but somehow never seems to have enough. 
	Larry has decided that he needs to grab hold of his financial portfolio and solve his financing problems.
	The first step is to figure out what's been going on with his money. 
	Larry has his bank account statements and wants to see how much money he has.
	Help Larry by writing a program to take his closing balance from each of the past twelve months and 
	calculate his average account balance.

        The input will be twelve lines. 
        Each line will contain the closing balance of his bank account for a particular month. 
        Each number will be positive and displayed to the penny. No dollar sign will be included.
    
	The output will be a single number, the average (mean) of the closing balances for the twelve months.
	It will be rounded to the nearest penny, preceded immediately by a dollar sign, 
	and followed by the end-of-line. There will be no other spaces or characters in the output.

*/
/****************************************************************************/


// 考察c语言的语法题。。。超级水题。。。
// 无需注释，仅仅是求十二个月的平均花销。。。。

#include <stdio.h>
int main()
{
	int i;
	double Tmp, Sum;
	Sum = 0.0;

	for (i=0; i<12; i++)
	{
		scanf("%lf", &Tmp);
		Sum += Tmp;
	}

	printf("$%.2lf\n", Sum / 12);

	return 0;
}

/******************************************************/
/********************  心得体会  **********************/
/*
    
	  水水更健康！！！
*/
/******************************************************/