Financial Management
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- 输入
- 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.
- 输出
- 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.
- 样例输入
100.00489.1212454.121234.10823.05109.205.271542.25839.1883.991295.011.75
- 样例输出
1581.42
- 解题思路:
- 本题主要是读懂题,难度也只是在于题目的翻译,首先应该明白,本题是求平均数。我一开始想把这十二个数放到数组里进行计算,可是后来想这样比较繁琐,而且占内存,就直接,用循环将十二组数据相加,再求取平均值。
- 其代码如下:
#include<stdio.h>int main(){int i;double a,sum=0;for(i=0;i<12;i++){scanf("%lf",&a);sum+=a;}printf("%.2f\n",sum/12);return 0;}
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