杭电ACM-1064 Financial Management

本文介绍了一个简单的程序设计问题,即如何计算过去十二个月银行账户的平均余额,并提供了一段AC代码作为解决方案。

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Financial Management

 

                                                                 Time Limit: 400/200 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
                                                                 Total Submission(s): 15770    Accepted Submission(s): 9255

 

 

Problem Description

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.

 

 

Input

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.

 

 

Output

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.

 

 

Sample Input


 

100.00 489.12 12454.12 1234.10 823.05 109.20 5.27 1542.25 839.18 83.99 1295.01 1.75

 

 

Sample Output


 

$1581.42

水题,为了练翻译......没什么说的,求十二个月银行卡的平均余额,直接求就是了。别忘了加美元符号,没有其他格式要求。

AC代码如下:

#include <iostream>
using namespace std;
int main()
{
      double  a ,sum ;
      sum=0.00;                        //初始化
	for(int i=0;i<12;i++)
	{
	          cin >> a;
	  	  sum+=a;
	}
	cout<<"$"<<sum/12<<endl;     //为了方便,在这里直接除12了
    return 0 ;
}

 

 

 

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