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职务
- 2023-8-3 9:47:42 @
#include <bits/stdc++.h>
using namespace std;
int main()
{
double a,b=0;
for(int i=1; i<=12; i++)
{
cin>>a;
b+=a;
}
cout<<"$";
printf("%.2f",b/12);
return 0;
}
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