#include <iostream>
#include <vector>
using std::cout;
using std::endl;
using std::vector;
template <typename Iter>
double vectorSum(Iter begin, Iter end) {
double sum = 0.0;
while( begin != end )
sum += *begin++;
return sum;
}
int main() {
vector<int> sunny;
sunny.push_back(7);
sunny.push_back(12);
sunny.push_back(15);
cout << sunny.size() << " months on record" << endl;
cout << "vectorSum number of sunny days: ";
cout << vectorSum(sunny.begin(), sunny.end()) << endl;
return 0;
}
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