#include<iostream> using namespace std; int main() { double a[11]={0,28.9,32.7,45.6,78,35,86.2,27.8,43,56,65}; double b[11]; double s=0; for(int i=1;i<=11;i++){ cin>>a[i]; } for(int i=1;i<=n;i++){ s=s+a[i]*b[i]; } }