1.5编程基础之循环控制 01 求平均年龄

题目链接

http://noi.openjudge.cn/ch0105/01/ 

#include<iostream>
using namespace std;
int main()
{
	int n;
	int x;
	int i;
	double sum=0.0;
	double ping;
	
	cin>>n;
	
	for(i=1;i<=n;i++)
	{
		cin>>x;
		sum+=x;
	}
	
	ping=sum/n;
	
	printf("%.2lf",ping);
	
	return 0;
}

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Scratch3代码

 

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python代码

""“

1.5编程基础之循环控制 01 求平均年龄
http://noi.openjudge.cn/ch0105/01/

"""
n = int(input())
a = 0
for i in range(n):
            a += int(input())
print("%.2f" % (a / n))