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最新推荐文章于 2019-07-10 13:19:00 发布

原创最新推荐文章于 2019-07-10 13:19:00 发布 · 244 阅读

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本文介绍了一个简单的程序设计问题：如何计算一年内每个月银行账户的平均余额。通过使用C++编程语言，文章提供了一段代码示例，展示了如何读取十二个月份的账户余额，并计算这些余额的平均值。

Financial Management
Time Limit: 2 Seconds Memory Limit: 65536 KB

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 Format:

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 Format:

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

简单的入门题，输入求均值输出就行

#include<iostream>
#include<iomanip> 
using namespace std;
int main(){
    float a[12];
    int i=0;
    float sum=0;
    for(i=0;i<12;i++){
        cin>>a[i];
        sum+=a[i];
    }
    cout<<"$"<<fixed<<setprecision(2)<<sum/12<<endl;
    return 0;
}

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